26188193240 has 64 divisors (see below), whose sum is σ = 67663296000. Its totient is φ = 9021767040.

The previous prime is 26188193191. The next prime is 26188193257. The reversal of 26188193240 is 4239188162.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 26188193191 and 26188193200.

It is a congruent number.

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, 1557920 + ... + 1574639.

It is an arithmetic number, because the mean of its divisors is an integer number (1057239000).

Almost surely, 2^26188193240 is an apocalyptic number.

26188193240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26188193240 is an abundant number, since it is smaller than the sum of its proper divisors (41475102760).

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

26188193240 is a wasteful number, since it uses less digits than its factorization.

26188193240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132600 (or 3132596 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 26188193240 in words is "twenty-six billion, one hundred eighty-eight million, one hundred ninety-three thousand, two hundred forty".