312004511500493 has 16 divisors (see below), whose sum is σ = 363305911858560. Its totient is φ = 262385483720256.

The previous prime is 312004511500421. The next prime is 312004511500537. The reversal of 312004511500493 is 394005115400213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 312004511500493 - 2¹⁰ = 312004511499469 is a prime.

It is a super-2 number, since 2×312004511500493² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312004511590493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98201546 + ... + 101328932.

It is an arithmetic number, because the mean of its divisors is an integer number (22706619491160).

Almost surely, 2^{312004511500493} is an apocalyptic number.

It is an amenable number.

312004511500493 is a deficient number, since it is larger than the sum of its proper divisors (51301400358067).

312004511500493 is a wasteful number, since it uses less digits than its factorization.

312004511500493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396356.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 312004511500493 in words is "three hundred twelve trillion, four billion, five hundred eleven million, five hundred thousand, four hundred ninety-three".