623400667039 has 2 divisors, whose sum is σ = 623400667040. Its totient is φ = 623400667038.

The previous prime is 623400667009. The next prime is 623400667063. The reversal of 623400667039 is 930766004326.

623400667039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 623400667039 - 2²⁵ = 623367112607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 623400667039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623400667009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311700333519 + 311700333520.

It is an arithmetic number, because the mean of its divisors is an integer number (311700333520).

Almost surely, 2^623400667039 is an apocalyptic number.

623400667039 is a deficient number, since it is larger than the sum of its proper divisors (1).

623400667039 is an equidigital number, since it uses as much as digits as its factorization.

623400667039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 46.

The spelling of 623400667039 in words is "six hundred twenty-three billion, four hundred million, six hundred sixty-seven thousand, thirty-nine".