26130401650 has 24 divisors (see below), whose sum is σ = 51461522100. Its totient is φ = 9837327360.

The previous prime is 26130401587. The next prime is 26130401659. The reversal of 26130401650 is 5610403162.

It can be written as a sum of positive squares in 6 ways, for example, as 6459497641 + 19670904009 = 80371^2 + 140253^2 .

It is not an unprimeable number, because it can be changed into a prime (26130401659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15369975 + ... + 15371674.

Almost surely, 2^26130401650 is an apocalyptic number.

26130401650 is a deficient number, since it is larger than the sum of its proper divisors (25331120450).

26130401650 is a wasteful number, since it uses less digits than its factorization.

26130401650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30741678 (or 30741673 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 26130401650 in words is "twenty-six billion, one hundred thirty million, four hundred one thousand, six hundred fifty".