78562256465 has 16 divisors (see below), whose sum is σ = 117537298560. Its totient is φ = 48973873920.

The previous prime is 78562256453. The next prime is 78562256467. The reversal of 78562256465 is 56465226587.

It is a happy number.

It is not a de Polignac number, because 78562256465 - 2⁴ = 78562256449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78562256465.

It is not an unprimeable number, because it can be changed into a prime (78562256467) 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, 102028520 + ... + 102029289.

It is an arithmetic number, because the mean of its divisors is an integer number (7346081160).

Almost surely, 2^78562256465 is an apocalyptic number.

It is an amenable number.

78562256465 is a deficient number, since it is larger than the sum of its proper divisors (38975042095).

78562256465 is a wasteful number, since it uses less digits than its factorization.

78562256465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204057832.

The product of its digits is 24192000, while the sum is 56.

The spelling of 78562256465 in words is "seventy-eight billion, five hundred sixty-two million, two hundred fifty-six thousand, four hundred sixty-five".