51352700085478 has 16 divisors (see below), whose sum is σ = 84467088418896. Its totient is φ = 23221192688640.

The previous prime is 51352700085457. The next prime is 51352700085481. The reversal of 51352700085478 is 87458000725315.

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 in 7 ways as a sum of consecutive naturals, for example, 6047181351 + ... + 6047189842.

It is an arithmetic number, because the mean of its divisors is an integer number (5279193026181).

Almost surely, 2^{51352700085478} is an apocalyptic number.

51352700085478 is a deficient number, since it is larger than the sum of its proper divisors (33114388333418).

51352700085478 is a wasteful number, since it uses less digits than its factorization.

51352700085478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12094371399.

The product of its (nonzero) digits is 9408000, while the sum is 55.

The spelling of 51352700085478 in words is "fifty-one trillion, three hundred fifty-two billion, seven hundred million, eighty-five thousand, four hundred seventy-eight".