117548587451 has 2 divisors, whose sum is σ = 117548587452. Its totient is φ = 117548587450.

The previous prime is 117548587433. The next prime is 117548587463. The reversal of 117548587451 is 154785845711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117548587451 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (117548587411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58774293725 + 58774293726.

It is an arithmetic number, because the mean of its divisors is an integer number (58774293726).

Almost surely, 2^117548587451 is an apocalyptic number.

117548587451 is a deficient number, since it is larger than the sum of its proper divisors (1).

117548587451 is an equidigital number, since it uses as much as digits as its factorization.

117548587451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6272000, while the sum is 56.

The spelling of 117548587451 in words is "one hundred seventeen billion, five hundred forty-eight million, five hundred eighty-seven thousand, four hundred fifty-one".