51490654197120 has 128 divisors (see below), whose sum is σ = 182362733676000. Its totient is φ = 13730841114624.

The previous prime is 51490654197049. The next prime is 51490654197163. The reversal of 51490654197120 is 2179145609415.

51490654197120 is a `hidden beast` number, since 5 + 1 + 4 + 9 + 0 + 6 + 541 + 9 + 71 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 1489874335 + ... + 1489908894.

Almost surely, 2^{51490654197120} is an apocalyptic number.

It is an amenable number.

51490654197120 is an abundant number, since it is smaller than the sum of its proper divisors (130872079478880).

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

51490654197120 is a wasteful number, since it uses less digits than its factorization.

51490654197120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979783257 (or 2979783239 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 51490654197120 in words is "fifty-one trillion, four hundred ninety billion, six hundred fifty-four million, one hundred ninety-seven thousand, one hundred twenty".