2916921648 has 80 divisors (see below), whose sum is σ = 8050536320. Its totient is φ = 907365888.

The previous prime is 2916921643. The next prime is 2916921653. The reversal of 2916921648 is 8461296192.

2916921648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2916921643) and next prime (2916921653).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 2916921597 and 2916921606.

It is not an unprimeable number, because it can be changed into a prime (2916921643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37236 + ... + 84972.

It is an arithmetic number, because the mean of its divisors is an integer number (100631704).

Almost surely, 2^2916921648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2916921648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4025268160).

2916921648 is an abundant number, since it is smaller than the sum of its proper divisors (5133614672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2916921648 is a wasteful number, since it uses less digits than its factorization.

2916921648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47834 (or 47828 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 2916921648 is about 54008.5331035754. The cubic root of 2916921648 is about 1428.8114478922.

The spelling of 2916921648 in words is "two billion, nine hundred sixteen million, nine hundred twenty-one thousand, six hundred forty-eight".