2907121968 has 160 divisors (see below), whose sum is σ = 8848005120. Its totient is φ = 912280320.

The previous prime is 2907121967. The next prime is 2907121981. The reversal of 2907121968 is 8691217092.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2907121967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492571 + ... + 498437.

It is an arithmetic number, because the mean of its divisors is an integer number (55300032).

Almost surely, 2^2907121968 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 2907121968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4424002560).

2907121968 is an abundant number, since it is smaller than the sum of its proper divisors (5940883152).

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

2907121968 is a wasteful number, since it uses less digits than its factorization.

2907121968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5952 (or 5940 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 2907121968 is about 53917.7333351468. The cubic root of 2907121968 is about 1427.2095759838.

The spelling of 2907121968 in words is "two billion, nine hundred seven million, one hundred twenty-one thousand, nine hundred sixty-eight".