26490675720 has 32 divisors (see below), whose sum is σ = 79472027520. Its totient is φ = 7064180160.

The previous prime is 26490675719. The next prime is 26490675727. The reversal of 26490675720 is 2757609462.

It is a self number, because there is not a number n which added to its sum of digits gives 26490675720.

It is not an unprimeable number, because it can be changed into a prime (26490675727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110377696 + ... + 110377935.

It is an arithmetic number, because the mean of its divisors is an integer number (2483500860).

Almost surely, 2^26490675720 is an apocalyptic number.

26490675720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26490675720 is an abundant number, since it is smaller than the sum of its proper divisors (52981351800).

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

26490675720 is a wasteful number, since it uses less digits than its factorization.

26490675720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220755645 (or 220755641 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 26490675720 in words is "twenty-six billion, four hundred ninety million, six hundred seventy-five thousand, seven hundred twenty".