26118519520 has 24 divisors (see below), whose sum is σ = 61705002744. Its totient is φ = 10447407744.

The previous prime is 26118519481. The next prime is 26118519523. The reversal of 26118519520 is 2591581162.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26118519523) 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, 81620214 + ... + 81620533.

It is an arithmetic number, because the mean of its divisors is an integer number (2571041781).

Almost surely, 2^26118519520 is an apocalyptic number.

26118519520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26118519520 is an abundant number, since it is smaller than the sum of its proper divisors (35586483224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26118519520 is a wasteful number, since it uses less digits than its factorization.

26118519520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163240762 (or 163240754 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 40.

The spelling of 26118519520 in words is "twenty-six billion, one hundred eighteen million, five hundred nineteen thousand, five hundred twenty".