19854280852 has 48 divisors (see below), whose sum is σ = 40050946432. Its totient is φ = 8435871360.

The previous prime is 19854280819. The next prime is 19854280861. The reversal of 19854280852 is 25808245891.

It is a self number, because there is not a number n which added to its sum of digits gives 19854280852.

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, 1916278 + ... + 1926610.

Almost surely, 2^19854280852 is an apocalyptic number.

It is an amenable number.

19854280852 is an abundant number, since it is smaller than the sum of its proper divisors (20196665580).

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

19854280852 is a wasteful number, since it uses less digits than its factorization.

19854280852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10928 (or 10926 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 52.

The spelling of 19854280852 in words is "nineteen billion, eight hundred fifty-four million, two hundred eighty thousand, eight hundred fifty-two".