26390692713 has 128 divisors (see below), whose sum is σ = 49060270080. Its totient is φ = 12182814720.

The previous prime is 26390692711. The next prime is 26390692721. The reversal of 26390692713 is 31729609362.

It is a happy number.

It is not a de Polignac number, because 26390692713 - 2¹ = 26390692711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26390692711) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 43051395 + ... + 43052007.

It is an arithmetic number, because the mean of its divisors is an integer number (383283360).

Almost surely, 2^26390692713 is an apocalyptic number.

It is an amenable number.

26390692713 is a deficient number, since it is larger than the sum of its proper divisors (22669577367).

26390692713 is a wasteful number, since it uses less digits than its factorization.

26390692713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247.

The product of its (nonzero) digits is 734832, while the sum is 48.

The spelling of 26390692713 in words is "twenty-six billion, three hundred ninety million, six hundred ninety-two thousand, seven hundred thirteen".