26442120492 has 30 divisors (see below), whose sum is σ = 69124926948. Its totient is φ = 8814040056.

The previous prime is 26442120479. The next prime is 26442120493. The reversal of 26442120492 is 29402124462.

26442120492 is a `hidden beast` number, since 2 + 6 + 4 + 42 + 120 + 492 = 666.

It is a super-2 number, since 2×26442120492² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (26442120493) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40805418 + ... + 40806065.

Almost surely, 2^26442120492 is an apocalyptic number.

It is an amenable number.

26442120492 is an abundant number, since it is smaller than the sum of its proper divisors (42682806456).

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

26442120492 is a wasteful number, since it uses less digits than its factorization.

26442120492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81611499 (or 81611488 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 26442120492 in words is "twenty-six billion, four hundred forty-two million, one hundred twenty thousand, four hundred ninety-two".