51444578741052 has 48 divisors (see below), whose sum is σ = 137186391776000. Its totient is φ = 14698360161792.

The previous prime is 51444578741041. The next prime is 51444578741119. The reversal of 51444578741052 is 25014787544415.

It is a junction number, because it is equal to n+sod(n) for n = 51444578740983 and 51444578741001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12407643 + ... + 16026189.

Almost surely, 2^{51444578741052} is an apocalyptic number.

It is an amenable number.

51444578741052 is an abundant number, since it is smaller than the sum of its proper divisors (85741813034948).

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

51444578741052 is a wasteful number, since it uses less digits than its factorization.

51444578741052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787810 (or 3787808 counting only the distinct ones).

The product of its (nonzero) digits is 25088000, while the sum is 57.

The spelling of 51444578741052 in words is "fifty-one trillion, four hundred forty-four billion, five hundred seventy-eight million, seven hundred forty-one thousand, fifty-two".