51676326387 has 24 divisors (see below), whose sum is σ = 85329504000. Its totient is φ = 29521522800.

The previous prime is 51676326371. The next prime is 51676326389. The reversal of 51676326387 is 78362367615.

51676326387 is a `hidden beast` number, since 516 + 7 + 63 + 2 + 63 + 8 + 7 = 666.

It is not a de Polignac number, because 51676326387 - 2⁴ = 51676326371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51676326389) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136114 + ... + 349112.

It is an arithmetic number, because the mean of its divisors is an integer number (3555396000).

Almost surely, 2^51676326387 is an apocalyptic number.

51676326387 is a deficient number, since it is larger than the sum of its proper divisors (33653177613).

51676326387 is a wasteful number, since it uses less digits than its factorization.

51676326387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216863 (or 216860 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The spelling of 51676326387 in words is "fifty-one billion, six hundred seventy-six million, three hundred twenty-six thousand, three hundred eighty-seven".