2621139889199 has 64 divisors (see below), whose sum is σ = 2968321749120. Its totient is φ = 2298696744960.

The previous prime is 2621139889183. The next prime is 2621139889201. The reversal of 2621139889199 is 9919889311262.

It is a cyclic number.

It is not a de Polignac number, because 2621139889199 - 2⁴ = 2621139889183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621139889129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1601184209 + ... + 1601185845.

It is an arithmetic number, because the mean of its divisors is an integer number (46380027330).

Almost surely, 2^{2621139889199} is an apocalyptic number.

2621139889199 is a deficient number, since it is larger than the sum of its proper divisors (347181859921).

2621139889199 is a wasteful number, since it uses less digits than its factorization.

2621139889199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220.

The product of its digits is 30233088, while the sum is 68.

The spelling of 2621139889199 in words is "two trillion, six hundred twenty-one billion, one hundred thirty-nine million, eight hundred eighty-nine thousand, one hundred ninety-nine".