72307402633 has 2 divisors, whose sum is σ = 72307402634. Its totient is φ = 72307402632.

The previous prime is 72307402603. The next prime is 72307402637. The reversal of 72307402633 is 33620470327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57471431824 + 14835970809 = 239732^2 + 121803^2 .

It is a cyclic number.

It is not a de Polignac number, because 72307402633 - 2²¹ = 72305305481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72307402592 and 72307402601.

It is not a weakly prime, because it can be changed into another prime (72307402637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36153701316 + 36153701317.

It is an arithmetic number, because the mean of its divisors is an integer number (36153701317).

Almost surely, 2^72307402633 is an apocalyptic number.

It is an amenable number.

72307402633 is a deficient number, since it is larger than the sum of its proper divisors (1).

72307402633 is an equidigital number, since it uses as much as digits as its factorization.

72307402633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 37.

The spelling of 72307402633 in words is "seventy-two billion, three hundred seven million, four hundred two thousand, six hundred thirty-three".