117251383642 has 8 divisors (see below), whose sum is σ = 175879466100. Its totient is φ = 58624894944.

The previous prime is 117251383637. The next prime is 117251383649. The reversal of 117251383642 is 246383152711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 108531372481 + 8720011161 = 329441^2 + 93381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (117251383649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193417 + ... + 521452.

Almost surely, 2^117251383642 is an apocalyptic number.

117251383642 is a deficient number, since it is larger than the sum of its proper divisors (58628082458).

117251383642 is an equidigital number, since it uses as much as digits as its factorization.

117251383642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796880.

The product of its digits is 241920, while the sum is 43.

The spelling of 117251383642 in words is "one hundred seventeen billion, two hundred fifty-one million, three hundred eighty-three thousand, six hundred forty-two".