26961953397158 has 12 divisors (see below), whose sum is σ = 43793231997708. Its totient is φ = 12443978490840.

The previous prime is 26961953397139. The next prime is 26961953397191. The reversal of 26961953397158 is 85179335916962.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39884546108 + ... + 39884546783.

It is an arithmetic number, because the mean of its divisors is an integer number (3649435999809).

Almost surely, 2^{26961953397158} is an apocalyptic number.

26961953397158 is a deficient number, since it is larger than the sum of its proper divisors (16831278600550).

26961953397158 is a wasteful number, since it uses less digits than its factorization.

26961953397158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79769092919 (or 79769092906 counting only the distinct ones).

The product of its digits is 661348800, while the sum is 74.

The spelling of 26961953397158 in words is "twenty-six trillion, nine hundred sixty-one billion, nine hundred fifty-three million, three hundred ninety-seven thousand, one hundred fifty-eight".