19435789628 has 6 divisors (see below), whose sum is σ = 34012631856. Its totient is φ = 9717894812.

The previous prime is 19435789619. The next prime is 19435789649. The reversal of 19435789628 is 82698753491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2429473700 + ... + 2429473707.

It is an arithmetic number, because the mean of its divisors is an integer number (5668771976).

Almost surely, 2^19435789628 is an apocalyptic number.

It is an amenable number.

19435789628 is a deficient number, since it is larger than the sum of its proper divisors (14576842228).

19435789628 is a wasteful number, since it uses less digits than its factorization.

19435789628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858947411 (or 4858947409 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 62.

The spelling of 19435789628 in words is "nineteen billion, four hundred thirty-five million, seven hundred eighty-nine thousand, six hundred twenty-eight".