51145446460402 has 16 divisors (see below), whose sum is σ = 87681017930112. Its totient is φ = 21918699626400.

The previous prime is 51145446460379. The next prime is 51145446460517. The reversal of 51145446460402 is 20406464454115.

It is a happy 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, 64376758 + ... + 65166385.

It is an arithmetic number, because the mean of its divisors is an integer number (5480063620632).

Almost surely, 2^{51145446460402} is an apocalyptic number.

51145446460402 is a deficient number, since it is larger than the sum of its proper divisors (36535571469710).

51145446460402 is a wasteful number, since it uses less digits than its factorization.

51145446460402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129571353.

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 51145446460402 in words is "fifty-one trillion, one hundred forty-five billion, four hundred forty-six million, four hundred sixty thousand, four hundred two".