72307146251 has 2 divisors, whose sum is σ = 72307146252. Its totient is φ = 72307146250.

The previous prime is 72307146211. The next prime is 72307146257. The reversal of 72307146251 is 15264170327.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72307146251 is a prime.

It is not a weakly prime, because it can be changed into another prime (72307146257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36153573125 + 36153573126.

It is an arithmetic number, because the mean of its divisors is an integer number (36153573126).

Almost surely, 2^72307146251 is an apocalyptic number.

72307146251 is a deficient number, since it is larger than the sum of its proper divisors (1).

72307146251 is an equidigital number, since it uses as much as digits as its factorization.

72307146251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 72307146251 in words is "seventy-two billion, three hundred seven million, one hundred forty-six thousand, two hundred fifty-one".