10255643940 has 24 divisors (see below), whose sum is σ = 28715803200. Its totient is φ = 2734838368.

The previous prime is 10255643933. The next prime is 10255643947. The reversal of 10255643940 is 4934655201.

It is an interprime number because it is at equal distance from previous prime (10255643933) and next prime (10255643947).

It is not an unprimeable number, because it can be changed into a prime (10255643947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85463640 + ... + 85463759.

It is an arithmetic number, because the mean of its divisors is an integer number (1196491800).

Almost surely, 2^10255643940 is an apocalyptic number.

10255643940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10255643940 is an abundant number, since it is smaller than the sum of its proper divisors (18460159260).

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

10255643940 is a wasteful number, since it uses less digits than its factorization.

10255643940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170927411 (or 170927409 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 10255643940 in words is "ten billion, two hundred fifty-five million, six hundred forty-three thousand, nine hundred forty".