51746264385 has 64 divisors (see below), whose sum is σ = 91101542400. Its totient is φ = 24967434240.

The previous prime is 51746264357. The next prime is 51746264393. The reversal of 51746264385 is 58346264715.

It is not a de Polignac number, because 51746264385 - 2¹³ = 51746256193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1155879 + ... + 1199811.

It is an arithmetic number, because the mean of its divisors is an integer number (1423461600).

Almost surely, 2^51746264385 is an apocalyptic number.

It is an amenable number.

51746264385 is a deficient number, since it is larger than the sum of its proper divisors (39355278015).

51746264385 is a wasteful number, since it uses less digits than its factorization.

51746264385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44138.

The product of its digits is 4838400, while the sum is 51.

The spelling of 51746264385 in words is "fifty-one billion, seven hundred forty-six million, two hundred sixty-four thousand, three hundred eighty-five".