2646640848 has 40 divisors (see below), whose sum is σ = 6845221600. Its totient is φ = 881172864.

The previous prime is 2646640847. The next prime is 2646640877. The reversal of 2646640848 is 8480466462.

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 = 2646640797 and 2646640806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646640847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9138 + ... + 73326.

It is an arithmetic number, because the mean of its divisors is an integer number (171130540).

Almost surely, 2^2646640848 is an apocalyptic number.

It is an amenable number.

2646640848 is an abundant number, since it is smaller than the sum of its proper divisors (4198580752).

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

2646640848 is a wasteful number, since it uses less digits than its factorization.

2646640848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65059 (or 65053 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 48.

The square root of 2646640848 is about 51445.5133903823. The cubic root of 2646640848 is about 1383.2425410711.

The spelling of 2646640848 in words is "two billion, six hundred forty-six million, six hundred forty thousand, eight hundred forty-eight".