3621423257099 has 4 divisors (see below), whose sum is σ = 3640383588480. Its totient is φ = 3602462925720.

The previous prime is 3621423257087. The next prime is 3621423257171. The reversal of 3621423257099 is 9907523241263.

It is a happy number.

3621423257099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3621423257099 is a prime.

It is a super-2 number, since 2×3621423257099² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3621423257099.

It is not an unprimeable number, because it can be changed into a prime (3621423257009) 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, 9480165404 + ... + 9480165785.

It is an arithmetic number, because the mean of its divisors is an integer number (910095897120).

Almost surely, 2^{3621423257099} is an apocalyptic number.

3621423257099 is a deficient number, since it is larger than the sum of its proper divisors (18960331381).

3621423257099 is a wasteful number, since it uses less digits than its factorization.

3621423257099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18960331380.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 3621423257099 in words is "three trillion, six hundred twenty-one billion, four hundred twenty-three million, two hundred fifty-seven thousand, ninety-nine".