19758842552 has 64 divisors (see below), whose sum is σ = 39778089120. Its totient is φ = 9168130048.

The previous prime is 19758842533. The next prime is 19758842611. The reversal of 19758842552 is 25524885791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6963278 + ... + 6966114.

Almost surely, 2^19758842552 is an apocalyptic number.

It is an amenable number.

19758842552 is an abundant number, since it is smaller than the sum of its proper divisors (20019246568).

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

19758842552 is a wasteful number, since it uses less digits than its factorization.

19758842552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560 (or 3556 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 56.

The spelling of 19758842552 in words is "nineteen billion, seven hundred fifty-eight million, eight hundred forty-two thousand, five hundred fifty-two".