6439432802 has 8 divisors (see below), whose sum is σ = 10537253712. Its totient is φ = 2927014900.

The previous prime is 6439432801. The next prime is 6439432807. The reversal of 6439432802 is 2082349346.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6439432802² = 82932589622947142408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6439432802.

It is not an unprimeable number, because it can be changed into a prime (6439432801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146350724 + ... + 146350767.

It is an arithmetic number, because the mean of its divisors is an integer number (1317156714).

Almost surely, 2^6439432802 is an apocalyptic number.

6439432802 is a deficient number, since it is larger than the sum of its proper divisors (4097820910).

6439432802 is a wasteful number, since it uses less digits than its factorization.

6439432802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292701504.

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 6439432802 is about 80246.0765520658. The cubic root of 6439432802 is about 1860.4408715210.

The spelling of 6439432802 in words is "six billion, four hundred thirty-nine million, four hundred thirty-two thousand, eight hundred two".