51142587384 has 64 divisors (see below), whose sum is σ = 151160371200. Its totient is φ = 14108298624.

The previous prime is 51142587361. The next prime is 51142587389. The reversal of 51142587384 is 48378524115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51142587389) 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, 5243752 + ... + 5253495.

It is an arithmetic number, because the mean of its divisors is an integer number (2361880800).

Almost surely, 2^51142587384 is an apocalyptic number.

It is an amenable number.

51142587384 is an abundant number, since it is smaller than the sum of its proper divisors (100017783816).

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

51142587384 is a wasteful number, since it uses less digits than its factorization.

51142587384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10497292 (or 10497288 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The spelling of 51142587384 in words is "fifty-one billion, one hundred forty-two million, five hundred eighty-seven thousand, three hundred eighty-four".