26490619077730 has 24 divisors (see below), whose sum is σ = 49384057792212. Its totient is φ = 10230859778496.

The previous prime is 26490619077709. The next prime is 26490619077761. The reversal of 26490619077730 is 3777091609462.

It can be written as a sum of positive squares in 6 ways, for example, as 11947813946721 + 14542805131009 = 3456561^2 + 3813503^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1574939217 + ... + 1574956036.

Almost surely, 2^{26490619077730} is an apocalyptic number.

26490619077730 is a deficient number, since it is larger than the sum of its proper divisors (22893438714482).

26490619077730 is a wasteful number, since it uses less digits than its factorization.

26490619077730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149895318 (or 3149895289 counting only the distinct ones).

The product of its (nonzero) digits is 24004512, while the sum is 61.

The spelling of 26490619077730 in words is "twenty-six trillion, four hundred ninety billion, six hundred nineteen million, seventy-seven thousand, seven hundred thirty".