26400375140 has 24 divisors (see below), whose sum is σ = 55466533752. Its totient is φ = 10555246080.

The previous prime is 26400375103. The next prime is 26400375179. The reversal of 26400375140 is 4157300462.

It can be written as a sum of positive squares in 4 ways, for example, as 1347183616 + 25053191524 = 36704^2 + 158282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26400375097 and 26400375106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262199 + ... + 348638.

It is an arithmetic number, because the mean of its divisors is an integer number (2311105573).

Almost surely, 2^26400375140 is an apocalyptic number.

26400375140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26400375140 is an abundant number, since it is smaller than the sum of its proper divisors (29066158612).

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

26400375140 is a wasteful number, since it uses less digits than its factorization.

26400375140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613007 (or 613005 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 26400375140 in words is "twenty-six billion, four hundred million, three hundred seventy-five thousand, one hundred forty".