6574440642 has 96 divisors (see below), whose sum is σ = 16797901824. Its totient is φ = 1696212000.

The previous prime is 6574440619. The next prime is 6574440647. The reversal of 6574440642 is 2460444756.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 6574440594 and 6574440603.

It is not an unprimeable number, because it can be changed into a prime (6574440647) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 481603 + ... + 495065.

It is an arithmetic number, because the mean of its divisors is an integer number (174978144).

Almost surely, 2^6574440642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6574440642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8398950912).

6574440642 is an abundant number, since it is smaller than the sum of its proper divisors (10223461182).

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

6574440642 is a wasteful number, since it uses less digits than its factorization.

6574440642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13644 (or 13637 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 42.

The square root of 6574440642 is about 81082.9244785855. The cubic root of 6574440642 is about 1873.3529255503.

The spelling of 6574440642 in words is "six billion, five hundred seventy-four million, four hundred forty thousand, six hundred forty-two".