2121359384346 has 16 divisors (see below), whose sum is σ = 4492290461184. Its totient is φ = 665524512704.

The previous prime is 2121359384279. The next prime is 2121359384369. The reversal of 2121359384346 is 6434839531212.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 10398820410 + ... + 10398820613.

It is an arithmetic number, because the mean of its divisors is an integer number (280768153824).

Almost surely, 2^{2121359384346} is an apocalyptic number.

2121359384346 is an abundant number, since it is smaller than the sum of its proper divisors (2370931076838).

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

2121359384346 is a wasteful number, since it uses less digits than its factorization.

2121359384346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20797641045.

The product of its digits is 3732480, while the sum is 51.

The spelling of 2121359384346 in words is "two trillion, one hundred twenty-one billion, three hundred fifty-nine million, three hundred eighty-four thousand, three hundred forty-six".