117462726257 has 4 divisors (see below), whose sum is σ = 118782532260. Its totient is φ = 116142920256.

The previous prime is 117462726253. The next prime is 117462726281. The reversal of 117462726257 is 752627264711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 752627264711 = 7 ⋅107518180673.

It can be written as a sum of positive squares in 2 ways, for example, as 49155767521 + 68306958736 = 221711^2 + 261356^2 .

It is a cyclic number.

It is not a de Polignac number, because 117462726257 - 2² = 117462726253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117462726253) 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, 659902868 + ... + 659903045.

It is an arithmetic number, because the mean of its divisors is an integer number (29695633065).

Almost surely, 2^117462726257 is an apocalyptic number.

It is an amenable number.

117462726257 is a deficient number, since it is larger than the sum of its proper divisors (1319806003).

117462726257 is an equidigital number, since it uses as much as digits as its factorization.

117462726257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319806002.

The product of its digits is 1975680, while the sum is 50.

The spelling of 117462726257 in words is "one hundred seventeen billion, four hundred sixty-two million, seven hundred twenty-six thousand, two hundred fifty-seven".