72903792755 has 4 divisors (see below), whose sum is σ = 87484551312. Its totient is φ = 58323034200.

The previous prime is 72903792751. The next prime is 72903792791. The reversal of 72903792755 is 55729730927.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 72903792755 - 2² = 72903792751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72903792755.

It is not an unprimeable number, because it can be changed into a prime (72903792751) 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, 7290379271 + ... + 7290379280.

It is an arithmetic number, because the mean of its divisors is an integer number (21871137828).

Almost surely, 2^72903792755 is an apocalyptic number.

72903792755 is a deficient number, since it is larger than the sum of its proper divisors (14580758557).

72903792755 is a wasteful number, since it uses less digits than its factorization.

72903792755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14580758556.

The product of its (nonzero) digits is 8334900, while the sum is 56.

The spelling of 72903792755 in words is "seventy-two billion, nine hundred three million, seven hundred ninety-two thousand, seven hundred fifty-five".