613611623020 has 96 divisors (see below), whose sum is σ = 1481578801920. Its totient is φ = 211121360640.

The previous prime is 613611622961. The next prime is 613611623081. The reversal of 613611623020 is 20326116316.

613611623020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3239367 + ... + 3423553.

It is an arithmetic number, because the mean of its divisors is an integer number (15433112520).

Almost surely, 2^613611623020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613611623020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740789400960).

613611623020 is an abundant number, since it is smaller than the sum of its proper divisors (867967178900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613611623020 is a wasteful number, since it uses less digits than its factorization.

613611623020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185023 (or 185021 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

Adding to 613611623020 its reverse (20326116316), we get a palindrome (633937739336).

The spelling of 613611623020 in words is "six hundred thirteen billion, six hundred eleven million, six hundred twenty-three thousand, twenty".