26402762775251 has 4 divisors (see below), whose sum is σ = 26404364220912. Its totient is φ = 26401161329592.

The previous prime is 26402762775241. The next prime is 26402762775287. The reversal of 26402762775251 is 15257726720462.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26402762775251 is a prime.

It is a super-2 number, since 2×26402762775251² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26402762775241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800698100 + ... + 800731073.

It is an arithmetic number, because the mean of its divisors is an integer number (6601091055228).

Almost surely, 2^{26402762775251} is an apocalyptic number.

26402762775251 is a deficient number, since it is larger than the sum of its proper divisors (1601445661).

26402762775251 is a wasteful number, since it uses less digits than its factorization.

26402762775251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601445660.

The product of its (nonzero) digits is 19756800, while the sum is 56.

The spelling of 26402762775251 in words is "twenty-six trillion, four hundred two billion, seven hundred sixty-two million, seven hundred seventy-five thousand, two hundred fifty-one".