26610005140 has 48 divisors (see below), whose sum is σ = 59182283664. Its totient is φ = 10015488000.

The previous prime is 26610005129. The next prime is 26610005167. The reversal of 26610005140 is 4150001662.

It can be written as a sum of positive squares in 8 ways, for example, as 4799441284 + 21810563856 = 69278^2 + 147684^2 .

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, 2136130 + ... + 2148550.

It is an arithmetic number, because the mean of its divisors is an integer number (1232964243).

Almost surely, 2^26610005140 is an apocalyptic number.

26610005140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26610005140 is an abundant number, since it is smaller than the sum of its proper divisors (32572278524).

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

26610005140 is a wasteful number, since it uses less digits than its factorization.

26610005140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18748 (or 18746 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 26610005140 in words is "twenty-six billion, six hundred ten million, five thousand, one hundred forty".