28026490968 has 128 divisors (see below), whose sum is σ = 93655872000. Its totient is φ = 7586110080.

The previous prime is 28026490951. The next prime is 28026490969. The reversal of 28026490968 is 86909462082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28026490969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 459063 + ... + 516518.

It is an arithmetic number, because the mean of its divisors is an integer number (731686500).

Almost surely, 2^28026490968 is an apocalyptic number.

28026490968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28026490968 is an abundant number, since it is smaller than the sum of its proper divisors (65629381032).

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

28026490968 is a wasteful number, since it uses less digits than its factorization.

28026490968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975622 (or 975612 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 28026490968 in words is "twenty-eight billion, twenty-six million, four hundred ninety thousand, nine hundred sixty-eight".