623712756546563 has 2 divisors, whose sum is σ = 623712756546564. Its totient is φ = 623712756546562.

The previous prime is 623712756546443. The next prime is 623712756546577. The reversal of 623712756546563 is 365645657217326.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 623712756546563 - 2¹⁴ = 623712756530179 is a prime.

It is a super-2 number, since 2×623712756546563² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 623712756546493 and 623712756546502.

It is not a weakly prime, because it can be changed into another prime (623712756546163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311856378273281 + 311856378273282.

It is an arithmetic number, because the mean of its divisors is an integer number (311856378273282).

Almost surely, 2^{623712756546563} is an apocalyptic number.

623712756546563 is a deficient number, since it is larger than the sum of its proper divisors (1).

623712756546563 is an equidigital number, since it uses as much as digits as its factorization.

623712756546563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072000, while the sum is 68.

The spelling of 623712756546563 in words is "six hundred twenty-three trillion, seven hundred twelve billion, seven hundred fifty-six million, five hundred forty-six thousand, five hundred sixty-three".