72375730939 has 2 divisors, whose sum is σ = 72375730940. Its totient is φ = 72375730938.

The previous prime is 72375730927. The next prime is 72375730949. The reversal of 72375730939 is 93903757327.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72375730939 - 2⁷ = 72375730811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72375730939.

It is not a weakly prime, because it can be changed into another prime (72375730949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36187865469 + 36187865470.

It is an arithmetic number, because the mean of its divisors is an integer number (36187865470).

Almost surely, 2^72375730939 is an apocalyptic number.

72375730939 is a deficient number, since it is larger than the sum of its proper divisors (1).

72375730939 is an equidigital number, since it uses as much as digits as its factorization.

72375730939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7501410, while the sum is 55.

The spelling of 72375730939 in words is "seventy-two billion, three hundred seventy-five million, seven hundred thirty thousand, nine hundred thirty-nine".