117952717451 has 2 divisors, whose sum is σ = 117952717452. Its totient is φ = 117952717450.

The previous prime is 117952717403. The next prime is 117952717453. The reversal of 117952717451 is 154717259711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117952717451 - 2¹⁴ = 117952701067 is a prime.

Together with 117952717453, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117952717451.

It is not a weakly prime, because it can be changed into another prime (117952717453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58976358725 + 58976358726.

It is an arithmetic number, because the mean of its divisors is an integer number (58976358726).

Almost surely, 2^117952717451 is an apocalyptic number.

117952717451 is a deficient number, since it is larger than the sum of its proper divisors (1).

117952717451 is an equidigital number, since it uses as much as digits as its factorization.

117952717451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 617400, while the sum is 50.

The spelling of 117952717451 in words is "one hundred seventeen billion, nine hundred fifty-two million, seven hundred seventeen thousand, four hundred fifty-one".