51311153456 has 20 divisors (see below), whose sum is σ = 104647747800. Its totient is φ = 24305283072.

The previous prime is 51311153419. The next prime is 51311153459. The reversal of 51311153456 is 65435111315.

It is not an unprimeable number, because it can be changed into a prime (51311153459) 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, 84393041 + ... + 84393648.

It is an arithmetic number, because the mean of its divisors is an integer number (5232387390).

Almost surely, 2^51311153456 is an apocalyptic number.

It is an amenable number.

51311153456 is an abundant number, since it is smaller than the sum of its proper divisors (53336594344).

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

51311153456 is a wasteful number, since it uses less digits than its factorization.

51311153456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168786716 (or 168786710 counting only the distinct ones).

The product of its digits is 27000, while the sum is 35.

The spelling of 51311153456 in words is "fifty-one billion, three hundred eleven million, one hundred fifty-three thousand, four hundred fifty-six".