26115433240 has 64 divisors (see below), whose sum is σ = 64990013760. Its totient is φ = 9382003200.

The previous prime is 26115433231. The next prime is 26115433243. The reversal of 26115433240 is 4233451162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26115433243) 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, 659436 + ... + 697915.

It is an arithmetic number, because the mean of its divisors is an integer number (1015468965).

Almost surely, 2^26115433240 is an apocalyptic number.

26115433240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26115433240 is an abundant number, since it is smaller than the sum of its proper divisors (38874580520).

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

26115433240 is a wasteful number, since it uses less digits than its factorization.

26115433240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357412 (or 1357408 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 26115433240 in words is "twenty-six billion, one hundred fifteen million, four hundred thirty-three thousand, two hundred forty".