72562494778 has 16 divisors (see below), whose sum is σ = 113004297216. Its totient is φ = 34907926320.

The previous prime is 72562494737. The next prime is 72562494779. The reversal of 72562494778 is 87749426527.

It is not an unprimeable number, because it can be changed into a prime (72562494779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3371826 + ... + 3393277.

It is an arithmetic number, because the mean of its divisors is an integer number (7062768576).

Almost surely, 2^72562494778 is an apocalyptic number.

72562494778 is a deficient number, since it is larger than the sum of its proper divisors (40441802438).

72562494778 is a wasteful number, since it uses less digits than its factorization.

72562494778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765309.

The product of its digits is 47416320, while the sum is 61.

The spelling of 72562494778 in words is "seventy-two billion, five hundred sixty-two million, four hundred ninety-four thousand, seven hundred seventy-eight".