26681494154784 has 96 divisors (see below), whose sum is σ = 80046951304320. Its totient is φ = 7623048916992.

The previous prime is 26681494154759. The next prime is 26681494154971. The reversal of 26681494154784 is 48745149418662.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21801442 + ... + 22992734.

It is an arithmetic number, because the mean of its divisors is an integer number (833822409420).

Almost surely, 2^{26681494154784} is an apocalyptic number.

26681494154784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26681494154784 is an abundant number, since it is smaller than the sum of its proper divisors (53365457149536).

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

26681494154784 is a wasteful number, since it uses less digits than its factorization.

26681494154784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224642 (or 1224634 counting only the distinct ones).

The product of its digits is 371589120, while the sum is 69.

The spelling of 26681494154784 in words is "twenty-six trillion, six hundred eighty-one billion, four hundred ninety-four million, one hundred fifty-four thousand, seven hundred eighty-four".