51535580400188 has 6 divisors (see below), whose sum is σ = 90187265700336. Its totient is φ = 25767790200092.

The previous prime is 51535580400137. The next prime is 51535580400233. The reversal of 51535580400188 is 88100408553515.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6441947550020 + ... + 6441947550027.

It is an arithmetic number, because the mean of its divisors is an integer number (15031210950056).

Almost surely, 2^{51535580400188} is an apocalyptic number.

It is an amenable number.

51535580400188 is a deficient number, since it is larger than the sum of its proper divisors (38651685300148).

51535580400188 is a wasteful number, since it uses less digits than its factorization.

51535580400188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12883895100051 (or 12883895100049 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 53.

The spelling of 51535580400188 in words is "fifty-one trillion, five hundred thirty-five billion, five hundred eighty million, four hundred thousand, one hundred eighty-eight".