118791935521 has 32 divisors (see below), whose sum is σ = 149452515072. Its totient is φ = 92099082240.

The previous prime is 118791935497. The next prime is 118791935533. The reversal of 118791935521 is 125539197811.

It is a cyclic number.

It is not a de Polignac number, because 118791935521 - 2¹³ = 118791927329 is a prime.

It is a super-2 number, since 2×118791935521² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118791935621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145195 + ... + 508591.

It is an arithmetic number, because the mean of its divisors is an integer number (4670391096).

Almost surely, 2^118791935521 is an apocalyptic number.

It is an amenable number.

118791935521 is a deficient number, since it is larger than the sum of its proper divisors (30660579551).

118791935521 is a wasteful number, since it uses less digits than its factorization.

118791935521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363529.

The product of its digits is 680400, while the sum is 52.

The spelling of 118791935521 in words is "one hundred eighteen billion, seven hundred ninety-one million, nine hundred thirty-five thousand, five hundred twenty-one".