26857352140 has 24 divisors (see below), whose sum is σ = 56413264320. Its totient is φ = 10740498048.

The previous prime is 26857352113. The next prime is 26857352161. The reversal of 26857352140 is 4125375862.

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, 61185 + ... + 239704.

It is an arithmetic number, because the mean of its divisors is an integer number (2350552680).

Almost surely, 2^26857352140 is an apocalyptic number.

26857352140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26857352140 is an abundant number, since it is smaller than the sum of its proper divisors (29555912180).

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

26857352140 is a wasteful number, since it uses less digits than its factorization.

26857352140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305361 (or 305359 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 26857352140 in words is "twenty-six billion, eight hundred fifty-seven million, three hundred fifty-two thousand, one hundred forty".