51486140843104 has 72 divisors (see below), whose sum is σ = 111859792577064. Its totient is φ = 23309552640000.

The previous prime is 51486140843057. The next prime is 51486140843161. The reversal of 51486140843104 is 40134804168415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25516257 + ... + 27460000.

It is an arithmetic number, because the mean of its divisors is an integer number (1553608230237).

Almost surely, 2^{51486140843104} is an apocalyptic number.

It is an amenable number.

51486140843104 is an abundant number, since it is smaller than the sum of its proper divisors (60373651733960).

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

51486140843104 is a wasteful number, since it uses less digits than its factorization.

51486140843104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52976540 (or 52976521 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 51486140843104 in words is "fifty-one trillion, four hundred eighty-six billion, one hundred forty million, eight hundred forty-three thousand, one hundred four".