26666631930 has 16 divisors (see below), whose sum is σ = 63999916704. Its totient is φ = 7111101840.

The previous prime is 26666631889. The next prime is 26666631941. The reversal of 26666631930 is 3913666662.

It is a super-2 number, since 2×26666631930² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26666631930.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444443836 + ... + 444443895.

It is an arithmetic number, because the mean of its divisors is an integer number (3999994794).

Almost surely, 2^26666631930 is an apocalyptic number.

26666631930 is an abundant number, since it is smaller than the sum of its proper divisors (37333284774).

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

26666631930 is a wasteful number, since it uses less digits than its factorization.

26666631930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888887741.

The product of its (nonzero) digits is 1259712, while the sum is 48.

The spelling of 26666631930 in words is "twenty-six billion, six hundred sixty-six million, six hundred thirty-one thousand, nine hundred thirty".