26139424000 has 72 divisors (see below), whose sum is σ = 65116652328. Its totient is φ = 10455756800.

The previous prime is 26139423991. The next prime is 26139424027. The reversal of 26139424000 is 42493162.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5190914304 + 20948509696 = 72048^2 + 144736^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376429 + ... + 440428.

It is an arithmetic number, because the mean of its divisors is an integer number (904397949).

Almost surely, 2^26139424000 is an apocalyptic number.

26139424000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26139424000 is an abundant number, since it is smaller than the sum of its proper divisors (38977228328).

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

26139424000 is an frugal number, since it uses more digits than its factorization.

26139424000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816888 (or 816864 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 26139424000 in words is "twenty-six billion, one hundred thirty-nine million, four hundred twenty-four thousand".