26515265151 has 4 divisors (see below), whose sum is σ = 35353686872. Its totient is φ = 17676843432.

The previous prime is 26515265141. The next prime is 26515265207. The reversal of 26515265151 is 15156251562.

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

It is not a de Polignac number, because 26515265151 - 2²¹ = 26513167999 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 (26515265131) 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, 4419210856 + ... + 4419210861.

It is an arithmetic number, because the mean of its divisors is an integer number (8838421718).

Almost surely, 2^26515265151 is an apocalyptic number.

26515265151 is a deficient number, since it is larger than the sum of its proper divisors (8838421721).

26515265151 is an equidigital number, since it uses as much as digits as its factorization.

26515265151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8838421720.

The product of its digits is 90000, while the sum is 39.

The spelling of 26515265151 in words is "twenty-six billion, five hundred fifteen million, two hundred sixty-five thousand, one hundred fifty-one".