26930399508 has 30 divisors (see below), whose sum is σ = 70401384746. Its totient is φ = 8976799728.

The previous prime is 26930399473. The next prime is 26930399513. The reversal of 26930399508 is 80599303962.

It can be written as a sum of positive squares in only one way, i.e., 25583362704 + 1347036804 = 159948^2 + 36702^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 41558935 + ... + 41559582.

Almost surely, 2^26930399508 is an apocalyptic number.

It is an amenable number.

26930399508 is an abundant number, since it is smaller than the sum of its proper divisors (43470985238).

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

26930399508 is a wasteful number, since it uses less digits than its factorization.

26930399508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83118533 (or 83118522 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 26930399508 in words is "twenty-six billion, nine hundred thirty million, three hundred ninety-nine thousand, five hundred eight".