2865012638512 has 20 divisors (see below), whose sum is σ = 5557926832416. Its totient is φ = 1430708939840.

The previous prime is 2865012638479. The next prime is 2865012638531. The reversal of 2865012638512 is 2158362105682.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112323064 + ... + 112348567.

Almost surely, 2^{2865012638512} is an apocalyptic number.

It is an amenable number.

2865012638512 is a deficient number, since it is larger than the sum of its proper divisors (2692914193904).

2865012638512 is a wasteful number, since it uses less digits than its factorization.

2865012638512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224672436 (or 224672430 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 2865012638512 in words is "two trillion, eight hundred sixty-five billion, twelve million, six hundred thirty-eight thousand, five hundred twelve".