120957864487 has 16 divisors (see below), whose sum is σ = 124035322752. Its totient is φ = 117922764960.

The previous prime is 120957864479. The next prime is 120957864529. The reversal of 120957864487 is 784468759021.

It is a cyclic number.

It is not a de Polignac number, because 120957864487 - 2³ = 120957864479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120957864437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3255348 + ... + 3292294.

It is an arithmetic number, because the mean of its divisors is an integer number (7752207672).

Almost surely, 2^120957864487 is an apocalyptic number.

120957864487 is a deficient number, since it is larger than the sum of its proper divisors (3077458265).

120957864487 is a wasteful number, since it uses less digits than its factorization.

120957864487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37518.

The product of its (nonzero) digits is 27095040, while the sum is 61.

The spelling of 120957864487 in words is "one hundred twenty billion, nine hundred fifty-seven million, eight hundred sixty-four thousand, four hundred eighty-seven".