2021357838188 has 24 divisors (see below), whose sum is σ = 3912441058512. Its totient is φ = 907719943104.

The previous prime is 2021357838187. The next prime is 2021357838239. The reversal of 2021357838188 is 8818387531202.

It is a super-3 number, since 3×2021357838188³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2021357838187) 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, 525298970 + ... + 525302817.

It is an arithmetic number, because the mean of its divisors is an integer number (163018377438).

Almost surely, 2^{2021357838188} is an apocalyptic number.

It is an amenable number.

2021357838188 is a deficient number, since it is larger than the sum of its proper divisors (1891083220324).

2021357838188 is a wasteful number, since it uses less digits than its factorization.

2021357838188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050601841 (or 1050601839 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 2021357838188 in words is "two trillion, twenty-one billion, three hundred fifty-seven million, eight hundred thirty-eight thousand, one hundred eighty-eight".