6623426431 has 4 divisors (see below), whose sum is σ = 6623680000. Its totient is φ = 6623172864.

The previous prime is 6623426371. The next prime is 6623426471. The reversal of 6623426431 is 1346243266.

It is a happy number.

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 6623426431 - 2¹⁵ = 6623393663 is a prime.

It is a super-2 number, since 2×6623426431² = 87739555373738795522, which 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 (6623426471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82431 + ... + 141568.

It is an arithmetic number, because the mean of its divisors is an integer number (1655920000).

Almost surely, 2^6623426431 is an apocalyptic number.

6623426431 is a deficient number, since it is larger than the sum of its proper divisors (253569).

6623426431 is a wasteful number, since it uses less digits than its factorization.

6623426431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253568.

The product of its digits is 124416, while the sum is 37.

The square root of 6623426431 is about 81384.4360489154. The cubic root of 6623426431 is about 1877.9941665985.

Adding to 6623426431 its reverse (1346243266), we get a palindrome (7969669697).

It can be divided in two parts, 66234264 and 31, that added together give a triangular number (66234295 = T₁₁₅₀₉).

The spelling of 6623426431 in words is "six billion, six hundred twenty-three million, four hundred twenty-six thousand, four hundred thirty-one".