2599620672 has 56 divisors (see below), whose sum is σ = 7503456672. Its totient is φ = 787763200.

The previous prime is 2599620631. The next prime is 2599620677. The reversal of 2599620672 is 2760269952.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (2599620677) 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, 613329 + ... + 617552.

Almost surely, 2^2599620672 is an apocalyptic number.

2599620672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2599620672 is an abundant number, since it is smaller than the sum of its proper divisors (4903836000).

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

2599620672 is a wasteful number, since it uses less digits than its factorization.

2599620672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230907 (or 1230897 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 2599620672 is about 50986.4753831837. The cubic root of 2599620672 is about 1375.0019917547.

The spelling of 2599620672 in words is "two billion, five hundred ninety-nine million, six hundred twenty thousand, six hundred seventy-two".