26145006631 has 2 divisors, whose sum is σ = 26145006632. Its totient is φ = 26145006630.

The previous prime is 26145006619. The next prime is 26145006659. The reversal of 26145006631 is 13660054162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26145006631 - 2⁵ = 26145006599 is a prime.

It is a super-2 number, since 2×26145006631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26145006611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13072503315 + 13072503316.

It is an arithmetic number, because the mean of its divisors is an integer number (13072503316).

Almost surely, 2^26145006631 is an apocalyptic number.

26145006631 is a deficient number, since it is larger than the sum of its proper divisors (1).

26145006631 is an equidigital number, since it uses as much as digits as its factorization.

26145006631 is an evil number, because the sum of its binary digits is even.

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

The spelling of 26145006631 in words is "twenty-six billion, one hundred forty-five million, six thousand, six hundred thirty-one".