5111910920988 has 18 divisors (see below), whose sum is σ = 12921774828144. Its totient is φ = 1703970306984.

The previous prime is 5111910920947. The next prime is 5111910920993. The reversal of 5111910920988 is 8890290191115.

It is a happy number.

5111910920988 is a `hidden beast` number, since 511 + 1 + 9 + 10 + 9 + 20 + 98 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×5111910920988² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70998762756 + ... + 70998762827.

Almost surely, 2^{5111910920988} is an apocalyptic number.

It is an amenable number.

5111910920988 is an abundant number, since it is smaller than the sum of its proper divisors (7809863907156).

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

5111910920988 is a wasteful number, since it uses less digits than its factorization.

5111910920988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141997525593 (or 141997525588 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 54.

The spelling of 5111910920988 in words is "five trillion, one hundred eleven billion, nine hundred ten million, nine hundred twenty thousand, nine hundred eighty-eight".