51098836731 has 8 divisors (see below), whose sum is σ = 69793533264. Its totient is φ = 33235015680.

The previous prime is 51098836729. The next prime is 51098836739. The reversal of 51098836731 is 13763889015.

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

It is not a de Polignac number, because 51098836731 - 2¹ = 51098836729 is a prime.

It is a super-2 number, since 2×51098836731² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51098836739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207718726 + ... + 207718971.

It is an arithmetic number, because the mean of its divisors is an integer number (8724191658).

Almost surely, 2^51098836731 is an apocalyptic number.

51098836731 is a deficient number, since it is larger than the sum of its proper divisors (18694696533).

51098836731 is a wasteful number, since it uses less digits than its factorization.

51098836731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415437741.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 51098836731 in words is "fifty-one billion, ninety-eight million, eight hundred thirty-six thousand, seven hundred thirty-one".