26430957431 has 8 divisors (see below), whose sum is σ = 26563299840. Its totient is φ = 26298856792.

The previous prime is 26430957391. The next prime is 26430957433. The reversal of 26430957431 is 13475903462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26430957431 - 2²² = 26426763127 is a prime.

It is a super-2 number, since 2×26430957431² (a number of 22 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 (26430957433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160766 + ... + 280548.

It is an arithmetic number, because the mean of its divisors is an integer number (3320412480).

Almost surely, 2^26430957431 is an apocalyptic number.

26430957431 is a deficient number, since it is larger than the sum of its proper divisors (132342409).

26430957431 is a wasteful number, since it uses less digits than its factorization.

26430957431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120885.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 26430957431 in words is "twenty-six billion, four hundred thirty million, nine hundred fifty-seven thousand, four hundred thirty-one".