51244643614475 has 48 divisors (see below), whose sum is σ = 67135440556800. Its totient is φ = 38694356887680.

The previous prime is 51244643614457. The next prime is 51244643614487. The reversal of 51244643614475 is 57441634644215.

It is not a de Polignac number, because 51244643614475 - 2²⁴ = 51244626837259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51244643614475.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278019896 + ... + 278204154.

It is an arithmetic number, because the mean of its divisors is an integer number (1398655011600).

Almost surely, 2^{51244643614475} is an apocalyptic number.

51244643614475 is a deficient number, since it is larger than the sum of its proper divisors (15890796942325).

51244643614475 is a wasteful number, since it uses less digits than its factorization.

51244643614475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186452 (or 186447 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 56.

The spelling of 51244643614475 in words is "fifty-one trillion, two hundred forty-four billion, six hundred forty-three million, six hundred fourteen thousand, four hundred seventy-five".