26340052140 has 72 divisors (see below), whose sum is σ = 82653283440. Its totient is φ = 6781805184.

The previous prime is 26340052139. The next prime is 26340052163. The reversal of 26340052140 is 4125004362.

26340052140 is a `hidden beast` number, since 2 + 63 + 40 + 0 + 521 + 40 = 666.

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, 2517774 + ... + 2528213.

It is an arithmetic number, because the mean of its divisors is an integer number (1147962270).

Almost surely, 2^26340052140 is an apocalyptic number.

26340052140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26340052140 is an abundant number, since it is smaller than the sum of its proper divisors (56313231300).

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

26340052140 is a wasteful number, since it uses less digits than its factorization.

26340052140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046031 (or 5046026 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 26340052140 in words is "twenty-six billion, three hundred forty million, fifty-two thousand, one hundred forty".