26995404157 has 4 divisors (see below), whose sum is σ = 27452953440. Its totient is φ = 26537854876.

The previous prime is 26995404143. The next prime is 26995404211. The reversal of 26995404157 is 75140459962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26995404157 - 2³¹ = 24847920509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26995404127) 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, 228774553 + ... + 228774670.

It is an arithmetic number, because the mean of its divisors is an integer number (6863238360).

Almost surely, 2^26995404157 is an apocalyptic number.

It is an amenable number.

26995404157 is a deficient number, since it is larger than the sum of its proper divisors (457549283).

26995404157 is an equidigital number, since it uses as much as digits as its factorization.

26995404157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457549282.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 26995404157 in words is "twenty-six billion, nine hundred ninety-five million, four hundred four thousand, one hundred fifty-seven".