26312052631 has 2 divisors, whose sum is σ = 26312052632. Its totient is φ = 26312052630.

The previous prime is 26312052607. The next prime is 26312052667. The reversal of 26312052631 is 13625021362.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26312052631 - 2⁹ = 26312052119 is a prime.

It is a super-2 number, since 2×26312052631² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26312052593 and 26312052602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26312052691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13156026315 + 13156026316.

It is an arithmetic number, because the mean of its divisors is an integer number (13156026316).

Almost surely, 2^26312052631 is an apocalyptic number.

26312052631 is a deficient number, since it is larger than the sum of its proper divisors (1).

26312052631 is an equidigital number, since it uses as much as digits as its factorization.

26312052631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 26312052631 its reverse (13625021362), we get a palindrome (39937073993).

The spelling of 26312052631 in words is "twenty-six billion, three hundred twelve million, fifty-two thousand, six hundred thirty-one".