620112290509 has 4 divisors (see below), whose sum is σ = 620126826304. Its totient is φ = 620097754716.

The previous prime is 620112290491. The next prime is 620112290519. The reversal of 620112290509 is 905092211026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 620112290509 - 2⁵ = 620112290477 is a prime.

It is a super-2 number, since 2×620112290509² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620112290519) 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, 7203717 + ... + 7289290.

It is an arithmetic number, because the mean of its divisors is an integer number (155031706576).

Almost surely, 2^620112290509 is an apocalyptic number.

It is an amenable number.

620112290509 is a deficient number, since it is larger than the sum of its proper divisors (14535795).

620112290509 is a wasteful number, since it uses less digits than its factorization.

620112290509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14535794.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 620112290509 in words is "six hundred twenty billion, one hundred twelve million, two hundred ninety thousand, five hundred nine".