51177189000 has 128 divisors (see below), whose sum is σ = 182483308800. Its totient is φ = 11697638400.

The previous prime is 51177188989. The next prime is 51177189013. The reversal of 51177189000 is 98177115.

It is a self number, because there is not a number n which added to its sum of digits gives 51177189000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1197505 + ... + 1239504.

It is an arithmetic number, because the mean of its divisors is an integer number (1425650850).

Almost surely, 2^51177189000 is an apocalyptic number.

51177189000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51177189000 is an abundant number, since it is smaller than the sum of its proper divisors (131306119800).

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

51177189000 is a wasteful number, since it uses less digits than its factorization.

51177189000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437040 (or 2437026 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 39.

The spelling of 51177189000 in words is "fifty-one billion, one hundred seventy-seven million, one hundred eighty-nine thousand".