51351862198 has 32 divisors (see below), whose sum is σ = 94864008960. Its totient is φ = 20302043040.

The previous prime is 51351862193. The next prime is 51351862217. The reversal of 51351862198 is 89126815315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51351862193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198033 + ... + 376723.

It is an arithmetic number, because the mean of its divisors is an integer number (2964500280).

Almost surely, 2^51351862198 is an apocalyptic number.

51351862198 is a deficient number, since it is larger than the sum of its proper divisors (43512146762).

51351862198 is a wasteful number, since it uses less digits than its factorization.

51351862198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180292.

The product of its digits is 518400, while the sum is 49.

The spelling of 51351862198 in words is "fifty-one billion, three hundred fifty-one million, eight hundred sixty-two thousand, one hundred ninety-eight".