26980092540 has 36 divisors (see below), whose sum is σ = 81839614584. Its totient is φ = 7194691296.

The previous prime is 26980092481. The next prime is 26980092541. The reversal of 26980092540 is 4529008962.

26980092540 is a `hidden beast` number, since 26 + 9 + 80 + 0 + 9 + 2 + 540 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26980092541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74944522 + ... + 74944881.

Almost surely, 2^26980092540 is an apocalyptic number.

26980092540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26980092540 is an abundant number, since it is smaller than the sum of its proper divisors (54859522044).

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

26980092540 is a wasteful number, since it uses less digits than its factorization.

26980092540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149889418 (or 149889413 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 26980092540 in words is "twenty-six billion, nine hundred eighty million, ninety-two thousand, five hundred forty".