118740412402491 has 32 divisors (see below), whose sum is σ = 182874718365696. Its totient is φ = 67730055872000.

The previous prime is 118740412402487. The next prime is 118740412402519. The reversal of 118740412402491 is 194204214047811.

It is a cyclic number.

It is not a de Polignac number, because 118740412402491 - 2² = 118740412402487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118740412402491.

It is not an unprimeable number, because it can be changed into a prime (118740412402441) 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, 59716981 + ... + 61673321.

It is an arithmetic number, because the mean of its divisors is an integer number (5714834948928).

Almost surely, 2^{118740412402491} is an apocalyptic number.

118740412402491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

118740412402491 is a deficient number, since it is larger than the sum of its proper divisors (64134305963205).

118740412402491 is a wasteful number, since it uses less digits than its factorization.

118740412402491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064563.

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 118740412402491 in words is "one hundred eighteen trillion, seven hundred forty billion, four hundred twelve million, four hundred two thousand, four hundred ninety-one".