72768505943 has 8 divisors (see below), whose sum is σ = 83165915040. Its totient is φ = 62371573920.

The previous prime is 72768505939. The next prime is 72768505961. The reversal of 72768505943 is 34950586727.

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

It is a cyclic number.

It is not a de Polignac number, because 72768505943 - 2² = 72768505939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72768505993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311153 + ... + 492293.

It is an arithmetic number, because the mean of its divisors is an integer number (10395739380).

Almost surely, 2^72768505943 is an apocalyptic number.

72768505943 is a deficient number, since it is larger than the sum of its proper divisors (10397409097).

72768505943 is a wasteful number, since it uses less digits than its factorization.

72768505943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238537.

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 72768505943 in words is "seventy-two billion, seven hundred sixty-eight million, five hundred five thousand, nine hundred forty-three".