26406562797 has 12 divisors (see below), whose sum is σ = 38602365984. Its totient is φ = 17392273800.

The previous prime is 26406562783. The next prime is 26406562807. The reversal of 26406562797 is 79726560462.

26406562797 is a `hidden beast` number, since 2 + 6 + 4 + 0 + 6 + 5 + 627 + 9 + 7 = 666.

It is not a de Polignac number, because 26406562797 - 2¹¹ = 26406560749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26406562717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17674329 + ... + 17675822.

It is an arithmetic number, because the mean of its divisors is an integer number (3216863832).

Almost surely, 2^26406562797 is an apocalyptic number.

It is an amenable number.

26406562797 is a deficient number, since it is larger than the sum of its proper divisors (12195803187).

26406562797 is a wasteful number, since it uses less digits than its factorization.

26406562797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35350240 (or 35350237 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 26406562797 in words is "twenty-six billion, four hundred six million, five hundred sixty-two thousand, seven hundred ninety-seven".