26791317916432 has 10 divisors (see below), whose sum is σ = 51908178463118. Its totient is φ = 13395658958208.

The previous prime is 26791317916427. The next prime is 26791317916483. The reversal of 26791317916432 is 23461971319762.

It can be written as a sum of positive squares in only one way, i.e., 23483560928256 + 3307756988176 = 4845984^2 + 1818724^2 .

It is a super-2 number, since 2×26791317916432² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837228684873 + ... + 837228684904.

Almost surely, 2^{26791317916432} is an apocalyptic number.

It is an amenable number.

26791317916432 is a deficient number, since it is larger than the sum of its proper divisors (25116860546686).

26791317916432 is a wasteful number, since it uses less digits than its factorization.

26791317916432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674457369785 (or 1674457369779 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 61.

The spelling of 26791317916432 in words is "twenty-six trillion, seven hundred ninety-one billion, three hundred seventeen million, nine hundred sixteen thousand, four hundred thirty-two".