72783653492 has 24 divisors (see below), whose sum is σ = 139557401760. Its totient is φ = 32939004960.

The previous prime is 72783653491. The next prime is 72783653497. The reversal of 72783653492 is 29435638727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72783653491) 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, 3601658 + ... + 3621809.

It is an arithmetic number, because the mean of its divisors is an integer number (5814891740).

Almost surely, 2^72783653492 is an apocalyptic number.

It is an amenable number.

72783653492 is a deficient number, since it is larger than the sum of its proper divisors (66773748268).

72783653492 is a wasteful number, since it uses less digits than its factorization.

72783653492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223711 (or 7223709 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 56.

The spelling of 72783653492 in words is "seventy-two billion, seven hundred eighty-three million, six hundred fifty-three thousand, four hundred ninety-two".