26396175961 has 27 divisors (see below), whose sum is σ = 29652655071. Its totient is φ = 23489118144.

The previous prime is 26396175947. The next prime is 26396175973. The reversal of 26396175961 is 16957169362.

The square root of 26396175961 is 162469.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 20550656025 + 5845519936 = 143355^2 + 76456^2 .

It is not a de Polignac number, because 26396175961 - 2²⁹ = 25859305049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26396125961) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 52477236 + ... + 52477738.

Almost surely, 2^26396175961 is an apocalyptic number.

26396175961 is the 162469-th square number.

26396175961 is the 81235-th centered octagonal number.

It is an amenable number.

26396175961 is a deficient number, since it is larger than the sum of its proper divisors (3256479110).

26396175961 is an frugal number, since it uses more digits than its factorization.

26396175961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 539 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 55.

The spelling of 26396175961 in words is "twenty-six billion, three hundred ninety-six million, one hundred seventy-five thousand, nine hundred sixty-one".