819543473102 has 16 divisors (see below), whose sum is σ = 1231124318592. Its totient is φ = 409168821600.

The previous prime is 819543473093. The next prime is 819543473107. The reversal of 819543473102 is 201374345918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819543473107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16909568 + ... + 16957964.

It is an arithmetic number, because the mean of its divisors is an integer number (76945269912).

Almost surely, 2^819543473102 is an apocalyptic number.

819543473102 is a deficient number, since it is larger than the sum of its proper divisors (411580845490).

819543473102 is a wasteful number, since it uses less digits than its factorization.

819543473102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60683.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 819543473102 in words is "eight hundred nineteen billion, five hundred forty-three million, four hundred seventy-three thousand, one hundred two".