201440628868 has 24 divisors (see below), whose sum is σ = 355419187200. Its totient is φ = 99892836288.

The previous prime is 201440628863. The next prime is 201440628881. The reversal of 201440628868 is 868826044102.

It is a super-2 number, since 2×201440628868² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201440628863) 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, 1441473 + ... + 1575031.

It is an arithmetic number, because the mean of its divisors is an integer number (14809132800).

Almost surely, 2^201440628868 is an apocalyptic number.

It is an amenable number.

201440628868 is a deficient number, since it is larger than the sum of its proper divisors (153978558332).

201440628868 is a wasteful number, since it uses less digits than its factorization.

201440628868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136659 (or 136657 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 49.

The spelling of 201440628868 in words is "two hundred one billion, four hundred forty million, six hundred twenty-eight thousand, eight hundred sixty-eight".