8019969321 has 64 divisors (see below), whose sum is σ = 13391544320. Its totient is φ = 4156738560.

The previous prime is 8019969313. The next prime is 8019969341. The reversal of 8019969321 is 1239699108.

It is not a de Polignac number, because 8019969321 - 2³ = 8019969313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8019969311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5196876 + ... + 5198418.

It is an arithmetic number, because the mean of its divisors is an integer number (209242880).

Almost surely, 2^8019969321 is an apocalyptic number.

It is an amenable number.

8019969321 is a deficient number, since it is larger than the sum of its proper divisors (5371574999).

8019969321 is a wasteful number, since it uses less digits than its factorization.

8019969321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 8019969321 is about 89554.2814219398. The cubic root of 8019969321 is about 2001.6627273691.

The spelling of 8019969321 in words is "eight billion, nineteen million, nine hundred sixty-nine thousand, three hundred twenty-one".