72403024979 has 2 divisors, whose sum is σ = 72403024980. Its totient is φ = 72403024978.

The previous prime is 72403024943. The next prime is 72403025021. The reversal of 72403024979 is 97942030427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72403024979 - 2¹² = 72403020883 is a prime.

It is a super-2 number, since 2×72403024979² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72403024879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36201512489 + 36201512490.

It is an arithmetic number, because the mean of its divisors is an integer number (36201512490).

Almost surely, 2^72403024979 is an apocalyptic number.

72403024979 is a deficient number, since it is larger than the sum of its proper divisors (1).

72403024979 is an equidigital number, since it uses as much as digits as its factorization.

72403024979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 47.

The spelling of 72403024979 in words is "seventy-two billion, four hundred three million, twenty-four thousand, nine hundred seventy-nine".