26899899046740 has 72 divisors (see below), whose sum is σ = 81599662970280. Its totient is φ = 7173016080384.

The previous prime is 26899899046739. The next prime is 26899899046751. The reversal of 26899899046740 is 4764099899862.

26899899046740 is a `hidden beast` number, since 2 + 68 + 9 + 9 + 8 + 9 + 90 + 467 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2494896066576 + 24405002980164 = 1579524^2 + 4940142^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26899899046740.

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, 1453732 + ... + 7477508.

It is an arithmetic number, because the mean of its divisors is an integer number (1133328652365).

Almost surely, 2^{26899899046740} is an apocalyptic number.

26899899046740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26899899046740 is an abundant number, since it is smaller than the sum of its proper divisors (54699763923540).

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

26899899046740 is a wasteful number, since it uses less digits than its factorization.

26899899046740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6048601 (or 6048596 counting only the distinct ones).

The product of its (nonzero) digits is 3386105856, while the sum is 81.

The spelling of 26899899046740 in words is "twenty-six trillion, eight hundred ninety-nine billion, eight hundred ninety-nine million, forty-six thousand, seven hundred forty".