2015642464 has 24 divisors (see below), whose sum is σ = 4329051048. Its totient is φ = 916200960.

The previous prime is 2015642411. The next prime is 2015642471. The reversal of 2015642464 is 4642465102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2862777 + ... + 2863480.

It is an arithmetic number, because the mean of its divisors is an integer number (180377127).

Almost surely, 2^2015642464 is an apocalyptic number.

It is an amenable number.

2015642464 is an abundant number, since it is smaller than the sum of its proper divisors (2313408584).

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

2015642464 is a wasteful number, since it uses less digits than its factorization.

2015642464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5726278 (or 5726270 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 2015642464 is about 44895.9069849357. The cubic root of 2015642464 is about 1263.1972350252.

The spelling of 2015642464 in words is "two billion, fifteen million, six hundred forty-two thousand, four hundred sixty-four".