26721427692 has 48 divisors (see below), whose sum is σ = 65731663872. Its totient is φ = 8432033280.

The previous prime is 26721427673. The next prime is 26721427723. The reversal of 26721427692 is 29672412762.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472284 + ... + 525827.

It is an arithmetic number, because the mean of its divisors is an integer number (1369409664).

Almost surely, 2^26721427692 is an apocalyptic number.

It is an amenable number.

26721427692 is an abundant number, since it is smaller than the sum of its proper divisors (39010236180).

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

26721427692 is a wasteful number, since it uses less digits than its factorization.

26721427692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998238 (or 998236 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The spelling of 26721427692 in words is "twenty-six billion, seven hundred twenty-one million, four hundred twenty-seven thousand, six hundred ninety-two".