619889891632 has 20 divisors (see below), whose sum is σ = 1310221816776. Its totient is φ = 281768132480.

The previous prime is 619889891617. The next prime is 619889891633. The reversal of 619889891632 is 236198988916.

It is not an unprimeable number, because it can be changed into a prime (619889891633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1761050653 + ... + 1761051004.

Almost surely, 2^619889891632 is an apocalyptic number.

It is an amenable number.

619889891632 is an abundant number, since it is smaller than the sum of its proper divisors (690331925144).

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

619889891632 is a wasteful number, since it uses less digits than its factorization.

619889891632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522101676 (or 3522101670 counting only the distinct ones).

The product of its digits is 80621568, while the sum is 70.

The spelling of 619889891632 in words is "six hundred nineteen billion, eight hundred eighty-nine million, eight hundred ninety-one thousand, six hundred thirty-two".