51455158012 has 12 divisors (see below), whose sum is σ = 91962410400. Its totient is φ = 25180183616.

The previous prime is 51455157991. The next prime is 51455158031. The reversal of 51455158012 is 21085155415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136848637 + ... + 136849012.

It is an arithmetic number, because the mean of its divisors is an integer number (7663534200).

Almost surely, 2^51455158012 is an apocalyptic number.

It is an amenable number.

51455158012 is a deficient number, since it is larger than the sum of its proper divisors (40507252388).

51455158012 is a wasteful number, since it uses less digits than its factorization.

51455158012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273697700 (or 273697698 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 37.

The spelling of 51455158012 in words is "fifty-one billion, four hundred fifty-five million, one hundred fifty-eight thousand, twelve".