19530930802 has 4 divisors (see below), whose sum is σ = 29296396206. Its totient is φ = 9765465400.

The previous prime is 19530930779. The next prime is 19530930803. The reversal of 19530930802 is 20803903591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14068094881 + 5462835921 = 118609^2 + 73911^2 .

It is not an unprimeable number, because it can be changed into a prime (19530930803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4882732699 + ... + 4882732702.

Almost surely, 2^19530930802 is an apocalyptic number.

19530930802 is a deficient number, since it is larger than the sum of its proper divisors (9765465404).

19530930802 is an equidigital number, since it uses as much as digits as its factorization.

19530930802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9765465403.

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 19530930802 in words is "nineteen billion, five hundred thirty million, nine hundred thirty thousand, eight hundred two".