72623045623 has 2 divisors, whose sum is σ = 72623045624. Its totient is φ = 72623045622.

The previous prime is 72623045563. The next prime is 72623045641. The reversal of 72623045623 is 32654032627.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72623045623 - 2²⁹ = 72086174711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72623025623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36311522811 + 36311522812.

It is an arithmetic number, because the mean of its divisors is an integer number (36311522812).

Almost surely, 2^72623045623 is an apocalyptic number.

72623045623 is a deficient number, since it is larger than the sum of its proper divisors (1).

72623045623 is an equidigital number, since it uses as much as digits as its factorization.

72623045623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 72623045623 in words is "seventy-two billion, six hundred twenty-three million, forty-five thousand, six hundred twenty-three".