26462653397 has 2 divisors, whose sum is σ = 26462653398. Its totient is φ = 26462653396.

The previous prime is 26462653333. The next prime is 26462653423. The reversal of 26462653397 is 79335626462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20577615601 + 5885037796 = 143449^2 + 76714^2 .

It is a cyclic number.

It is not a de Polignac number, because 26462653397 - 2⁶ = 26462653333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26462653897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13231326698 + 13231326699.

It is an arithmetic number, because the mean of its divisors is an integer number (13231326699).

Almost surely, 2^26462653397 is an apocalyptic number.

It is an amenable number.

26462653397 is a deficient number, since it is larger than the sum of its proper divisors (1).

26462653397 is an equidigital number, since it uses as much as digits as its factorization.

26462653397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 53.

The spelling of 26462653397 in words is "twenty-six billion, four hundred sixty-two million, six hundred fifty-three thousand, three hundred ninety-seven".