51494497754000 has 80 divisors (see below), whose sum is σ = 142301366403456. Its totient is φ = 17655256368000.

The previous prime is 51494497753921. The next prime is 51494497754033. The reversal of 51494497754000 is 45779449415.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×51494497754000² (a number of 28 digits) contains 22 as substring.

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, 1839075206 + ... + 1839103205.

Almost surely, 2^{51494497754000} is an apocalyptic number.

51494497754000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51494497754000 is an abundant number, since it is smaller than the sum of its proper divisors (90806868649456).

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

51494497754000 is a wasteful number, since it uses less digits than its factorization.

51494497754000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3678178441 (or 3678178425 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 59.

The spelling of 51494497754000 in words is "fifty-one trillion, four hundred ninety-four billion, four hundred ninety-seven million, seven hundred fifty-four thousand".