77460120654 has 64 divisors (see below), whose sum is σ = 178134308352. Its totient is φ = 21996374400.

The previous prime is 77460120641. The next prime is 77460120707. The reversal of 77460120654 is 45602106477.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 9022644 + ... + 9031224.

It is an arithmetic number, because the mean of its divisors is an integer number (2783348568).

Almost surely, 2^77460120654 is an apocalyptic number.

77460120654 is an abundant number, since it is smaller than the sum of its proper divisors (100674187698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77460120654 is a wasteful number, since it uses less digits than its factorization.

77460120654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881.

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 77460120654 in words is "seventy-seven billion, four hundred sixty million, one hundred twenty thousand, six hundred fifty-four".