51118634608154 has 8 divisors (see below), whose sum is σ = 81188419671828. Its totient is φ = 24055828050880.

The previous prime is 51118634608127. The next prime is 51118634608189. The reversal of 51118634608154 is 45180643681115.

It can be written as a sum of positive squares in 2 ways, for example, as 44078246331025 + 7040388277129 = 6639145^2 + 2653373^2 .

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

It is a super-2 number, since 2×51118634608154² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51118634608096 and 51118634608105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751744626557 + ... + 751744626624.

Almost surely, 2^{51118634608154} is an apocalyptic number.

51118634608154 is a deficient number, since it is larger than the sum of its proper divisors (30069785063674).

51118634608154 is a wasteful number, since it uses less digits than its factorization.

51118634608154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503489253200.

The product of its (nonzero) digits is 2764800, while the sum is 53.

The spelling of 51118634608154 in words is "fifty-one trillion, one hundred eighteen billion, six hundred thirty-four million, six hundred eight thousand, one hundred fifty-four".