2121630246464 has 28 divisors (see below), whose sum is σ = 4251794290908. Its totient is φ = 1050312000000.

The previous prime is 2121630246457. The next prime is 2121630246473. The reversal of 2121630246464 is 4646420361212.

It can be written as a sum of positive squares in 2 ways, for example, as 1457718169600 + 663912076864 = 1207360^2 + 814808^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164104787 + ... + 164117714.

Almost surely, 2^{2121630246464} is an apocalyptic number.

It is an amenable number.

2121630246464 is an abundant number, since it is smaller than the sum of its proper divisors (2130164044444).

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

2121630246464 is a wasteful number, since it uses less digits than its factorization.

2121630246464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328222614 (or 328222604 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 2121630246464 in words is "two trillion, one hundred twenty-one billion, six hundred thirty million, two hundred forty-six thousand, four hundred sixty-four".