51397196898 has 16 divisors (see below), whose sum is σ = 103019332320. Its totient is φ = 17094909216.

The previous prime is 51397196897. The next prime is 51397196899. The reversal of 51397196898 is 89869179315.

It is an interprime number because it is at equal distance from previous prime (51397196897) and next prime (51397196899).

It is not an unprimeable number, because it can be changed into a prime (51397196897) 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, 9369468 + ... + 9374951.

It is an arithmetic number, because the mean of its divisors is an integer number (6438708270).

Almost surely, 2^51397196898 is an apocalyptic number.

51397196898 is an abundant number, since it is smaller than the sum of its proper divisors (51622135422).

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

51397196898 is a wasteful number, since it uses less digits than its factorization.

51397196898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18744881.

The product of its digits is 29393280, while the sum is 66.

The spelling of 51397196898 in words is "fifty-one billion, three hundred ninety-seven million, one hundred ninety-six thousand, eight hundred ninety-eight".