623380677943 has 2 divisors, whose sum is σ = 623380677944. Its totient is φ = 623380677942.

The previous prime is 623380677929. The next prime is 623380677991. The reversal of 623380677943 is 349776083326.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 623380677943 - 2⁹ = 623380677431 is a prime.

It is a super-2 number, since 2×623380677943² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623380677343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311690338971 + 311690338972.

It is an arithmetic number, because the mean of its divisors is an integer number (311690338972).

Almost surely, 2^623380677943 is an apocalyptic number.

623380677943 is a deficient number, since it is larger than the sum of its proper divisors (1).

623380677943 is an equidigital number, since it uses as much as digits as its factorization.

623380677943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 58.

The spelling of 623380677943 in words is "six hundred twenty-three billion, three hundred eighty million, six hundred seventy-seven thousand, nine hundred forty-three".