26191632240 has 120 divisors (see below), whose sum is σ = 92589765840. Its totient is φ = 6616829952.

The previous prime is 26191632223. The next prime is 26191632263. The reversal of 26191632240 is 4223619162.

It is a happy number.

26191632240 is a `hidden beast` number, since 2 + 6 + 19 + 1 + 632 + 2 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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 = 26191632195 and 26191632204.

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, 943617 + ... + 970976.

It is an arithmetic number, because the mean of its divisors is an integer number (771581382).

Almost surely, 2^26191632240 is an apocalyptic number.

26191632240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26191632240 is an abundant number, since it is smaller than the sum of its proper divisors (66398133600).

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

26191632240 is a wasteful number, since it uses less digits than its factorization.

26191632240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914631 (or 1914622 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 26191632240 in words is "twenty-six billion, one hundred ninety-one million, six hundred thirty-two thousand, two hundred forty".