26111843640 has 160 divisors (see below), whose sum is σ = 92384226000. Its totient is φ = 6596660736.

The previous prime is 26111843633. The next prime is 26111843669. The reversal of 26111843640 is 4634811162.

26111843640 is a `hidden beast` number, since 2 + 6 + 1 + 1 + 1 + 8 + 4 + 3 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 26111843595 and 26111843604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 150525 + ... + 273644.

Almost surely, 2^26111843640 is an apocalyptic number.

26111843640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26111843640 is an abundant number, since it is smaller than the sum of its proper divisors (66272382360).

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

26111843640 is a wasteful number, since it uses less digits than its factorization.

26111843640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424211 (or 424198 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 26111843640 in words is "twenty-six billion, one hundred eleven million, eight hundred forty-three thousand, six hundred forty".