2612040064 has 16 divisors (see below), whose sum is σ = 5203673820. Its totient is φ = 1306019968.

The previous prime is 2612040061. The next prime is 2612040073. The reversal of 2612040064 is 4600402162.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×2612040064² = 13645506591882248192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2612040061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10203154 + ... + 10203409.

Almost surely, 2^2612040064 is an apocalyptic number.

It is an amenable number.

2612040064 is a deficient number, since it is larger than the sum of its proper divisors (2591633756).

2612040064 is an equidigital number, since it uses as much as digits as its factorization.

2612040064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20406577 (or 20406565 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 2612040064 is about 51108.1213115880. The cubic root of 2612040064 is about 1377.1881525906.

The spelling of 2612040064 in words is "two billion, six hundred twelve million, forty thousand, sixty-four".