614621574644 has 24 divisors (see below), whose sum is σ = 1340992527168. Its totient is φ = 239462951040.

The previous prime is 614621574643. The next prime is 614621574649. The reversal of 614621574644 is 446475126416.

It is a junction number, because it is equal to n+sod(n) for n = 614621574592 and 614621574601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (614621574643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997761989 + ... + 997762604.

It is an arithmetic number, because the mean of its divisors is an integer number (55874688632).

Almost surely, 2^614621574644 is an apocalyptic number.

It is an amenable number.

614621574644 is an abundant number, since it is smaller than the sum of its proper divisors (726370952524).

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

614621574644 is a wasteful number, since it uses less digits than its factorization.

614621574644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995524615 (or 1995524613 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 50.

The spelling of 614621574644 in words is "six hundred fourteen billion, six hundred twenty-one million, five hundred seventy-four thousand, six hundred forty-four".