623340117893 has 2 divisors, whose sum is σ = 623340117894. Its totient is φ = 623340117892.

The previous prime is 623340117889. The next prime is 623340117919. The reversal of 623340117893 is 398711043326.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426928946404 + 196411171489 = 653398^2 + 443183^2 .

It is a cyclic number.

It is not a de Polignac number, because 623340117893 - 2² = 623340117889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623340117823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311670058946 + 311670058947.

It is an arithmetic number, because the mean of its divisors is an integer number (311670058947).

Almost surely, 2^623340117893 is an apocalyptic number.

It is an amenable number.

623340117893 is a deficient number, since it is larger than the sum of its proper divisors (1).

623340117893 is an equidigital number, since it uses as much as digits as its factorization.

623340117893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 623340117893 in words is "six hundred twenty-three billion, three hundred forty million, one hundred seventeen thousand, eight hundred ninety-three".