2612601640 has 32 divisors (see below), whose sum is σ = 6412750560. Its totient is φ = 950036800.

The previous prime is 2612601613. The next prime is 2612601647. The reversal of 2612601640 is 461062162.

It is a junction number, because it is equal to n+sod(n) for n = 2612601599 and 2612601608.

It is not an unprimeable number, because it can be changed into a prime (2612601647) 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, 2968426 + ... + 2969305.

It is an arithmetic number, because the mean of its divisors is an integer number (200398455).

Almost surely, 2^2612601640 is an apocalyptic number.

2612601640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2612601640 is an abundant number, since it is smaller than the sum of its proper divisors (3800148920).

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

2612601640 is a wasteful number, since it uses less digits than its factorization.

2612601640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5937753 (or 5937749 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2612601640 is about 51113.6150159622. The cubic root of 2612601640 is about 1377.2868417857.

The spelling of 2612601640 in words is "two billion, six hundred twelve million, six hundred one thousand, six hundred forty".