26930651880 has 64 divisors (see below), whose sum is σ = 88136683200. Its totient is φ = 6528642560.

The previous prime is 26930651873. The next prime is 26930651887. The reversal of 26930651880 is 8815603962.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26930651873) and next prime (26930651887).

It is not an unprimeable number, because it can be changed into a prime (26930651887) 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, 10199685 + ... + 10202324.

It is an arithmetic number, because the mean of its divisors is an integer number (1377135675).

Almost surely, 2^26930651880 is an apocalyptic number.

26930651880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26930651880 is an abundant number, since it is smaller than the sum of its proper divisors (61206031320).

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

26930651880 is a wasteful number, since it uses less digits than its factorization.

26930651880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20402034 (or 20402030 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 26930651880 in words is "twenty-six billion, nine hundred thirty million, six hundred fifty-one thousand, eight hundred eighty".