19413860852 has 24 divisors (see below), whose sum is σ = 34370065800. Its totient is φ = 9593931776.

The previous prime is 19413860819. The next prime is 19413860881. The reversal of 19413860852 is 25806831491.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4185313636 + 15228547216 = 64694^2 + 123404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19413860797 and 19413860806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983108 + ... + 1002660.

It is an arithmetic number, because the mean of its divisors is an integer number (1432086075).

Almost surely, 2^19413860852 is an apocalyptic number.

It is an amenable number.

19413860852 is a deficient number, since it is larger than the sum of its proper divisors (14956204948).

19413860852 is a wasteful number, since it uses less digits than its factorization.

19413860852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22435 (or 22433 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 19413860852 in words is "nineteen billion, four hundred thirteen million, eight hundred sixty thousand, eight hundred fifty-two".