118747092409 has 9 divisors (see below), whose sum is σ = 130527830181. Its totient is φ = 107948456220.

The previous prime is 118747092383. The next prime is 118747092491. The reversal of 118747092409 is 904290747811.

It is a happy number.

The square root of 118747092409 is 344597.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 118747092409 - 2¹⁷ = 118746961337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118747092209) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3774904 + ... + 3806230.

Almost surely, 2^118747092409 is an apocalyptic number.

118747092409 is the 344597-th square number.

118747092409 is the 172299-th centered octagonal number.

It is an amenable number.

118747092409 is a deficient number, since it is larger than the sum of its proper divisors (11780737772).

118747092409 is an frugal number, since it uses more digits than its factorization.

118747092409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62676 (or 31338 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 118747092409 in words is "one hundred eighteen billion, seven hundred forty-seven million, ninety-two thousand, four hundred nine".