26725156997 has 32 divisors (see below), whose sum is σ = 34121032704. Its totient is φ = 20324707200.

The previous prime is 26725156957. The next prime is 26725157057. The reversal of 26725156997 is 79965152762.

It is a happy number.

It is not a de Polignac number, because 26725156997 - 2¹⁶ = 26725091461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26725156957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5993993 + ... + 5998449.

It is an arithmetic number, because the mean of its divisors is an integer number (1066282272).

Almost surely, 2^26725156997 is an apocalyptic number.

It is an amenable number.

26725156997 is a deficient number, since it is larger than the sum of its proper divisors (7395875707).

26725156997 is a wasteful number, since it uses less digits than its factorization.

26725156997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6329.

The product of its digits is 14288400, while the sum is 59.

The spelling of 26725156997 in words is "twenty-six billion, seven hundred twenty-five million, one hundred fifty-six thousand, nine hundred ninety-seven".