72780807562 has 8 divisors (see below), whose sum is σ = 109244632896. Its totient is φ = 36365929932.

The previous prime is 72780807557. The next prime is 72780807569. The reversal of 72780807562 is 26570808727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (72780807569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12233208 + ... + 12239155.

It is an arithmetic number, because the mean of its divisors is an integer number (13655579112).

Almost surely, 2^72780807562 is an apocalyptic number.

72780807562 is a deficient number, since it is larger than the sum of its proper divisors (36463825334).

72780807562 is a wasteful number, since it uses less digits than its factorization.

72780807562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24473852.

The product of its (nonzero) digits is 2634240, while the sum is 52.

The spelling of 72780807562 in words is "seventy-two billion, seven hundred eighty million, eight hundred seven thousand, five hundred sixty-two".