8163439402 has 16 divisors (see below), whose sum is σ = 12286080000. Its totient is φ = 4068102240.

The previous prime is 8163439397. The next prime is 8163439411. The reversal of 8163439402 is 2049343618.

It is a happy number.

It is a super-3 number, since 3×8163439402³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 802327 + ... + 812437.

It is an arithmetic number, because the mean of its divisors is an integer number (767880000).

Almost surely, 2^8163439402 is an apocalyptic number.

8163439402 is a deficient number, since it is larger than the sum of its proper divisors (4122640598).

8163439402 is a wasteful number, since it uses less digits than its factorization.

8163439402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11421.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 8163439402 is about 90351.7537295209. The cubic root of 8163439402 is about 2013.5282372447.

The spelling of 8163439402 in words is "eight billion, one hundred sixty-three million, four hundred thirty-nine thousand, four hundred two".