621650150207 has 4 divisors (see below), whose sum is σ = 638451505656. Its totient is φ = 604848794760.

The previous prime is 621650150203. The next prime is 621650150239. The reversal of 621650150207 is 702051056126.

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

It is a cyclic number.

It is not a de Polignac number, because 621650150207 - 2² = 621650150203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621650150203) 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, 8400677669 + ... + 8400677742.

It is an arithmetic number, because the mean of its divisors is an integer number (159612876414).

Almost surely, 2^621650150207 is an apocalyptic number.

621650150207 is a deficient number, since it is larger than the sum of its proper divisors (16801355449).

621650150207 is a wasteful number, since it uses less digits than its factorization.

621650150207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16801355448.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 621650150207 in words is "six hundred twenty-one billion, six hundred fifty million, one hundred fifty thousand, two hundred seven".