19847475402 has 16 divisors (see below), whose sum is σ = 40975433472. Its totient is φ = 6402411360.

The previous prime is 19847475383. The next prime is 19847475419. The reversal of 19847475402 is 20457474891.

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, 53353243 + ... + 53353614.

It is an arithmetic number, because the mean of its divisors is an integer number (2560964592).

Almost surely, 2^19847475402 is an apocalyptic number.

19847475402 is an abundant number, since it is smaller than the sum of its proper divisors (21127958070).

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

19847475402 is a wasteful number, since it uses less digits than its factorization.

19847475402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106706893.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 19847475402 in words is "nineteen billion, eight hundred forty-seven million, four hundred seventy-five thousand, four hundred two".