51670381734 has 16 divisors (see below), whose sum is σ = 114823070640. Its totient is φ = 17223460560.

The previous prime is 51670381667. The next prime is 51670381747. The reversal of 51670381734 is 43718307615.

51670381734 is a `hidden beast` number, since 516 + 70 + 38 + 1 + 7 + 34 = 666.

51670381734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51670381734.

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, 478429407 + ... + 478429514.

It is an arithmetic number, because the mean of its divisors is an integer number (7176441915).

Almost surely, 2^51670381734 is an apocalyptic number.

51670381734 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

51670381734 is an abundant number, since it is smaller than the sum of its proper divisors (63152688906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51670381734 is a wasteful number, since it uses less digits than its factorization.

51670381734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956858932 (or 956858926 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 51670381734 in words is "fifty-one billion, six hundred seventy million, three hundred eighty-one thousand, seven hundred thirty-four".