26494629968040 has 128 divisors (see below), whose sum is σ = 88359262387200. Its totient is φ = 6311375861760.

The previous prime is 26494629967997. The next prime is 26494629968041. The reversal of 26494629968040 is 4086992649462.

It is not an unprimeable number, because it can be changed into a prime (26494629968041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273882885 + ... + 273979604.

It is an arithmetic number, because the mean of its divisors is an integer number (690306737400).

Almost surely, 2^{26494629968040} is an apocalyptic number.

26494629968040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26494629968040 is an abundant number, since it is smaller than the sum of its proper divisors (61864632419160).

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

26494629968040 is a wasteful number, since it uses less digits than its factorization.

26494629968040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547862547 (or 547862543 counting only the distinct ones).

The product of its (nonzero) digits is 322486272, while the sum is 69.

The spelling of 26494629968040 in words is "twenty-six trillion, four hundred ninety-four billion, six hundred twenty-nine million, nine hundred sixty-eight thousand, forty".