117428409537 has 4 divisors (see below), whose sum is σ = 156571212720. Its totient is φ = 78285606356.

The previous prime is 117428409487. The next prime is 117428409583. The reversal of 117428409537 is 735904824711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117428409537 - 2¹⁸ = 117428147393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117428409537.

It is not an unprimeable number, because it can be changed into a prime (117428409037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19571401587 + ... + 19571401592.

It is an arithmetic number, because the mean of its divisors is an integer number (39142803180).

Almost surely, 2^117428409537 is an apocalyptic number.

It is an amenable number.

117428409537 is a deficient number, since it is larger than the sum of its proper divisors (39142803183).

117428409537 is an equidigital number, since it uses as much as digits as its factorization.

117428409537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39142803182.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 117428409537 in words is "one hundred seventeen billion, four hundred twenty-eight million, four hundred nine thousand, five hundred thirty-seven".