623416635011431 has 4 divisors (see below), whose sum is σ = 632721360907192. Its totient is φ = 614111909115672.

The previous prime is 623416635011381. The next prime is 623416635011537. The reversal of 623416635011431 is 134110536614326.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 623416635011431 - 2⁹ = 623416635010919 is a prime.

It is a super-2 number, since 2×623416635011431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623416635014431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4652362947780 + ... + 4652362947913.

It is an arithmetic number, because the mean of its divisors is an integer number (158180340226798).

Almost surely, 2^{623416635011431} is an apocalyptic number.

623416635011431 is a deficient number, since it is larger than the sum of its proper divisors (9304725895761).

623416635011431 is an equidigital number, since it uses as much as digits as its factorization.

623416635011431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9304725895760.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 623416635011431 in words is "six hundred twenty-three trillion, four hundred sixteen billion, six hundred thirty-five million, eleven thousand, four hundred thirty-one".