2084147455221 has 24 divisors (see below), whose sum is σ = 3242065191456. Its totient is φ = 1282529319840.

The previous prime is 2084147455217. The next prime is 2084147455231. The reversal of 2084147455221 is 1225547414802.

2084147455221 is a `hidden beast` number, since 2 + 0 + 8 + 4 + 1 + 4 + 74 + 552 + 21 = 666.

It is not a de Polignac number, because 2084147455221 - 2² = 2084147455217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2084147455211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8325346 + ... + 8572028.

It is an arithmetic number, because the mean of its divisors is an integer number (135086049644).

Almost surely, 2^{2084147455221} is an apocalyptic number.

It is an amenable number.

2084147455221 is a deficient number, since it is larger than the sum of its proper divisors (1157917736235).

2084147455221 is a wasteful number, since it uses less digits than its factorization.

2084147455221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318913 (or 318910 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The spelling of 2084147455221 in words is "two trillion, eighty-four billion, one hundred forty-seven million, four hundred fifty-five thousand, two hundred twenty-one".