620242336623 has 32 divisors (see below), whose sum is σ = 1017887944192. Its totient is φ = 327143318400.

The previous prime is 620242336583. The next prime is 620242336639. The reversal of 620242336623 is 326633242026.

It is a happy number.

It is not a de Polignac number, because 620242336623 - 2²⁰ = 620241288047 is a prime.

It is a super-2 number, since 2×620242336623² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620242336723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6265653 + ... + 6363873.

It is an arithmetic number, because the mean of its divisors is an integer number (31808998256).

Almost surely, 2^620242336623 is an apocalyptic number.

620242336623 is a deficient number, since it is larger than the sum of its proper divisors (397645607569).

620242336623 is a wasteful number, since it uses less digits than its factorization.

620242336623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121375.

The product of its (nonzero) digits is 373248, while the sum is 39.

Adding to 620242336623 its reverse (326633242026), we get a palindrome (946875578649).

The spelling of 620242336623 in words is "six hundred twenty billion, two hundred forty-two million, three hundred thirty-six thousand, six hundred twenty-three".