26698955989662 has 48 divisors (see below), whose sum is σ = 64812207678192. Its totient is φ = 7871928053760.

The previous prime is 26698955989631. The next prime is 26698955989687.

26698955989662 is a `hidden beast` number, since 2 + 6 + 6 + 9 + 8 + 9 + 5 + 598 + 9 + 6 + 6 + 2 = 666.

26698955989662 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1822198243 + ... + 1822212894.

It is an arithmetic number, because the mean of its divisors is an integer number (1350254326629).

Almost surely, 2^{26698955989662} is an apocalyptic number.

26698955989662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26698955989662 is an abundant number, since it is smaller than the sum of its proper divisors (38113251688530).

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

26698955989662 is a wasteful number, since it uses less digits than its factorization.

26698955989662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644411193 (or 3644411190 counting only the distinct ones).

The product of its digits is 54419558400, while the sum is 90.

The spelling of 26698955989662 in words is "twenty-six trillion, six hundred ninety-eight billion, nine hundred fifty-five million, nine hundred eighty-nine thousand, six hundred sixty-two".