26929257995136 has 128 divisors (see below), whose sum is σ = 82969676040960. Its totient is φ = 7579236741120.

The previous prime is 26929257995131. The next prime is 26929257995179. The reversal of 26929257995136 is 63159975292962.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26929257995131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74583525 + ... + 74943716.

It is an arithmetic number, because the mean of its divisors is an integer number (648200594070).

Almost surely, 2^{26929257995136} is an apocalyptic number.

It is an amenable number.

26929257995136 is an abundant number, since it is smaller than the sum of its proper divisors (56040418045824).

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

26929257995136 is a wasteful number, since it uses less digits than its factorization.

26929257995136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149527332 (or 149527320 counting only the distinct ones).

The product of its digits is 992023200, while the sum is 75.

The spelling of 26929257995136 in words is "twenty-six trillion, nine hundred twenty-nine billion, two hundred fifty-seven million, nine hundred ninety-five thousand, one hundred thirty-six".