26601406531 has 8 divisors (see below), whose sum is σ = 31048450560. Its totient is φ = 22316073288.

The previous prime is 26601406499. The next prime is 26601406541. The reversal of 26601406531 is 13560410662.

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 26601406531 - 2⁵ = 26601406499 is a prime.

It is a super-2 number, since 2×26601406531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26601406541) 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, 40427341 + ... + 40427998.

It is an arithmetic number, because the mean of its divisors is an integer number (3881056320).

Almost surely, 2^26601406531 is an apocalyptic number.

26601406531 is a deficient number, since it is larger than the sum of its proper divisors (4447044029).

26601406531 is an equidigital number, since it uses as much as digits as its factorization.

26601406531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80855393.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 26601406531 in words is "twenty-six billion, six hundred one million, four hundred six thousand, five hundred thirty-one".