26342663740 has 12 divisors (see below), whose sum is σ = 55319593896. Its totient is φ = 10537065488.

The previous prime is 26342663731. The next prime is 26342663747. The reversal of 26342663740 is 4736624362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26342663747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658566574 + ... + 658566613.

It is an arithmetic number, because the mean of its divisors is an integer number (4609966158).

Almost surely, 2^26342663740 is an apocalyptic number.

26342663740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26342663740 is an abundant number, since it is smaller than the sum of its proper divisors (28976930156).

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

26342663740 is a wasteful number, since it uses less digits than its factorization.

26342663740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317133196 (or 1317133194 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 43.

The spelling of 26342663740 in words is "twenty-six billion, three hundred forty-two million, six hundred sixty-three thousand, seven hundred forty".