51198658192 has 40 divisors (see below), whose sum is σ = 114580960992. Its totient is φ = 21903168000.

The previous prime is 51198658183. The next prime is 51198658193. The reversal of 51198658192 is 29185689115.

It is a happy number.

It is a super-2 number, since 2×51198658192² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51198658193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8552934 + ... + 8558917.

Almost surely, 2^51198658192 is an apocalyptic number.

It is an amenable number.

51198658192 is an abundant number, since it is smaller than the sum of its proper divisors (63382302800).

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

51198658192 is a wasteful number, since it uses less digits than its factorization.

51198658192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17111887 (or 17111881 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 55.

The spelling of 51198658192 in words is "fifty-one billion, one hundred ninety-eight million, six hundred fifty-eight thousand, one hundred ninety-two".