2121614643652 has 24 divisors (see below), whose sum is σ = 4250084296640. Its totient is φ = 907794488160.

The previous prime is 2121614643649. The next prime is 2121614643667. The reversal of 2121614643652 is 2563464161212.

It is a junction number, because it is equal to n+sod(n) for n = 2121614643599 and 2121614643608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61187799 + ... + 61222462.

Almost surely, 2^{2121614643652} is an apocalyptic number.

It is an amenable number.

2121614643652 is an abundant number, since it is smaller than the sum of its proper divisors (2128469652988).

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

2121614643652 is a wasteful number, since it uses less digits than its factorization.

2121614643652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122410891 (or 122410889 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The spelling of 2121614643652 in words is "two trillion, one hundred twenty-one billion, six hundred fourteen million, six hundred forty-three thousand, six hundred fifty-two".