2123487888228 has 48 divisors (see below), whose sum is σ = 6291815967360. Its totient is φ = 606710824992.

The previous prime is 2123487888191. The next prime is 2123487888281. The reversal of 2123487888228 is 8228887843212.

2123487888228 is a `hidden beast` number, since 2 + 123 + 487 + 8 + 8 + 8 + 2 + 28 = 666.

It is a super-2 number, since 2×2123487888228² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1404422451 + ... + 1404423962.

It is an arithmetic number, because the mean of its divisors is an integer number (131079499320).

Almost surely, 2^{2123487888228} is an apocalyptic number.

2123487888228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2123487888228 is an abundant number, since it is smaller than the sum of its proper divisors (4168328079132).

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

2123487888228 is a wasteful number, since it uses less digits than its factorization.

2123487888228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808846433 (or 2808846425 counting only the distinct ones).

The product of its digits is 44040192, while the sum is 63.

The spelling of 2123487888228 in words is "two trillion, one hundred twenty-three billion, four hundred eighty-seven million, eight hundred eighty-eight thousand, two hundred twenty-eight".