26464157 has 4 divisors (see below), whose sum is σ = 26474460. Its totient is φ = 26453856.

The previous prime is 26464127. The next prime is 26464159. The reversal of 26464157 is 75146462.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11978521 + 14485636 = 3461^2 + 3806^2 .

It is a cyclic number.

It is not a de Polignac number, because 26464157 - 2¹⁶ = 26398621 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 (26464159) 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, 2183 + ... + 7595.

It is an arithmetic number, because the mean of its divisors is an integer number (6618615).

Almost surely, 2^26464157 is an apocalyptic number.

It is an amenable number.

26464157 is a deficient number, since it is larger than the sum of its proper divisors (10303).

26464157 is an equidigital number, since it uses as much as digits as its factorization.

26464157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10302.

The product of its digits is 40320, while the sum is 35.

The square root of 26464157 is about 5144.3325125812. The cubic root of 26464157 is about 298.0021207602.

The spelling of 26464157 in words is "twenty-six million, four hundred sixty-four thousand, one hundred fifty-seven".