51103762980818 has 16 divisors (see below), whose sum is σ = 81165298049784. Its totient is φ = 24048682076160.

The previous prime is 51103762980773. The next prime is 51103762980883. The reversal of 51103762980818 is 81808926730115.

It can be written as a sum of positive squares in 4 ways, for example, as 51078508367929 + 25254612889 = 7146923^2 + 158917^2 .

It is a super-2 number, since 2×51103762980818² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114346 + ... + 10171002.

Almost surely, 2^{51103762980818} is an apocalyptic number.

51103762980818 is a deficient number, since it is larger than the sum of its proper divisors (30061535068966).

51103762980818 is a wasteful number, since it uses less digits than its factorization.

51103762980818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9222637.

The product of its (nonzero) digits is 5806080, while the sum is 59.

The spelling of 51103762980818 in words is "fifty-one trillion, one hundred three billion, seven hundred sixty-two million, nine hundred eighty thousand, eight hundred eighteen".