26139192288 has 96 divisors (see below), whose sum is σ = 75399932160. Its totient is φ = 7863106560.

The previous prime is 26139192239. The next prime is 26139192301. The reversal of 26139192288 is 88229193162.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 26139192288.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54333 + ... + 235011.

It is an arithmetic number, because the mean of its divisors is an integer number (785415960).

Almost surely, 2^26139192288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26139192288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37699966080).

26139192288 is an abundant number, since it is smaller than the sum of its proper divisors (49260739872).

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

26139192288 is a wasteful number, since it uses less digits than its factorization.

26139192288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180840 (or 180832 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The spelling of 26139192288 in words is "twenty-six billion, one hundred thirty-nine million, one hundred ninety-two thousand, two hundred eighty-eight".