2121618283628 has 12 divisors (see below), whose sum is σ = 3739932960792. Its totient is φ = 1053066009120.

The previous prime is 2121618283621. The next prime is 2121618283643. The reversal of 2121618283628 is 8263828161212.

It is not an unprimeable number, because it can be changed into a prime (2121618283621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1935782558 + ... + 1935783653.

It is an arithmetic number, because the mean of its divisors is an integer number (311661080066).

Almost surely, 2^{2121618283628} is an apocalyptic number.

It is an amenable number.

2121618283628 is a deficient number, since it is larger than the sum of its proper divisors (1618314677164).

2121618283628 is a wasteful number, since it uses less digits than its factorization.

2121618283628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871566352 (or 3871566350 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The spelling of 2121618283628 in words is "two trillion, one hundred twenty-one billion, six hundred eighteen million, two hundred eighty-three thousand, six hundred twenty-eight".