312551535044551 has 4 divisors (see below), whose sum is σ = 340965310957704. Its totient is φ = 284137759131400.

The previous prime is 312551535044509. The next prime is 312551535044563. The reversal of 312551535044551 is 155440535155213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312551535044551 - 2⁷ = 312551535044423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312551535044495 and 312551535044504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312551535044351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14206887956560 + ... + 14206887956581.

It is an arithmetic number, because the mean of its divisors is an integer number (85241327739426).

Almost surely, 2^{312551535044551} is an apocalyptic number.

312551535044551 is a deficient number, since it is larger than the sum of its proper divisors (28413775913153).

312551535044551 is a wasteful number, since it uses less digits than its factorization.

312551535044551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28413775913152.

The product of its (nonzero) digits is 4500000, while the sum is 49.

The spelling of 312551535044551 in words is "three hundred twelve trillion, five hundred fifty-one billion, five hundred thirty-five million, forty-four thousand, five hundred fifty-one".