2145027996252 has 144 divisors (see below), whose sum is σ = 5616199680000. Its totient is φ = 689582211840.

The previous prime is 2145027996247. The next prime is 2145027996313. The reversal of 2145027996252 is 2526997205412.

2145027996252 is a `hidden beast` number, since 2 + 1 + 4 + 5 + 0 + 2 + 7 + 9 + 9 + 625 + 2 = 666.

It is a super-2 number, since 2×2145027996252² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 715246249 + ... + 715249247.

Almost surely, 2^{2145027996252} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145027996252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2808099840000).

2145027996252 is an abundant number, since it is smaller than the sum of its proper divisors (3471171683748).

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

2145027996252 is a wasteful number, since it uses less digits than its factorization.

2145027996252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016 (or 5011 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 2145027996252 in words is "two trillion, one hundred forty-five billion, twenty-seven million, nine hundred ninety-six thousand, two hundred fifty-two".