51551691351334 has 8 divisors (see below), whose sum is σ = 78386818356360. Its totient is φ = 25422751899216.

The previous prime is 51551691351299. The next prime is 51551691351371. The reversal of 51551691351334 is 43315319615515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176546888044 + ... + 176546888335.

It is an arithmetic number, because the mean of its divisors is an integer number (9798352294545).

Almost surely, 2^{51551691351334} is an apocalyptic number.

51551691351334 is a deficient number, since it is larger than the sum of its proper divisors (26835127005026).

51551691351334 is a wasteful number, since it uses less digits than its factorization.

51551691351334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353093776454.

The product of its digits is 3645000, while the sum is 52.

The spelling of 51551691351334 in words is "fifty-one trillion, five hundred fifty-one billion, six hundred ninety-one million, three hundred fifty-one thousand, three hundred thirty-four".