115920461947 has 2 divisors, whose sum is σ = 115920461948. Its totient is φ = 115920461946.

The previous prime is 115920461927. The next prime is 115920461953. The reversal of 115920461947 is 749164029511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115920461947 - 2⁷ = 115920461819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115920461947.

It is not a weakly prime, because it can be changed into another prime (115920461927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57960230973 + 57960230974.

It is an arithmetic number, because the mean of its divisors is an integer number (57960230974).

Almost surely, 2^115920461947 is an apocalyptic number.

115920461947 is a deficient number, since it is larger than the sum of its proper divisors (1).

115920461947 is an equidigital number, since it uses as much as digits as its factorization.

115920461947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 115920461947 in words is "one hundred fifteen billion, nine hundred twenty million, four hundred sixty-one thousand, nine hundred forty-seven".