51311470717 has 8 divisors (see below), whose sum is σ = 55283086880. Its totient is φ = 47343366000.

The previous prime is 51311470703. The next prime is 51311470733. The reversal of 51311470717 is 71707411315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51311470717 - 2¹¹ = 51311468669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51311470517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 847467 + ... + 905992.

It is an arithmetic number, because the mean of its divisors is an integer number (6910385860).

Almost surely, 2^51311470717 is an apocalyptic number.

It is an amenable number.

51311470717 is a deficient number, since it is larger than the sum of its proper divisors (3971616163).

51311470717 is a wasteful number, since it uses less digits than its factorization.

51311470717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755723.

The product of its (nonzero) digits is 20580, while the sum is 37.

The spelling of 51311470717 in words is "fifty-one billion, three hundred eleven million, four hundred seventy thousand, seven hundred seventeen".