72230399971 has 2 divisors, whose sum is σ = 72230399972. Its totient is φ = 72230399970.

The previous prime is 72230399929. The next prime is 72230400029. The reversal of 72230399971 is 17999303227.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72230399971 - 2³⁵ = 37870661603 is a prime.

It is not a weakly prime, because it can be changed into another prime (72230399921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36115199985 + 36115199986.

It is an arithmetic number, because the mean of its divisors is an integer number (36115199986).

Almost surely, 2^72230399971 is an apocalyptic number.

72230399971 is a deficient number, since it is larger than the sum of its proper divisors (1).

72230399971 is an equidigital number, since it uses as much as digits as its factorization.

72230399971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1285956, while the sum is 52.

The spelling of 72230399971 in words is "seventy-two billion, two hundred thirty million, three hundred ninety-nine thousand, nine hundred seventy-one".