51147331371 has 48 divisors (see below), whose sum is σ = 79518666240. Its totient is φ = 31577999040.

The previous prime is 51147331369. The next prime is 51147331373. The reversal of 51147331371 is 17313374115.

51147331371 is a `hidden beast` number, since 51 + 1 + 473 + 3 + 137 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (51147331369) and next prime (51147331373).

It is not a de Polignac number, because 51147331371 - 2¹ = 51147331369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51147331373) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7559436 + ... + 7566198.

It is an arithmetic number, because the mean of its divisors is an integer number (1656638880).

Almost surely, 2^51147331371 is an apocalyptic number.

51147331371 is a deficient number, since it is larger than the sum of its proper divisors (28371334869).

51147331371 is a wasteful number, since it uses less digits than its factorization.

51147331371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776 (or 7773 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The spelling of 51147331371 in words is "fifty-one billion, one hundred forty-seven million, three hundred thirty-one thousand, three hundred seventy-one".