6904437642 has 12 divisors (see below), whose sum is σ = 14959614930. Its totient is φ = 2301479208.

The previous prime is 6904437637. The next prime is 6904437713. The reversal of 6904437642 is 2467344096.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6832510281 + 71927361 = 82659^2 + 8481^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191789917 + ... + 191789952.

Almost surely, 2^6904437642 is an apocalyptic number.

6904437642 is an abundant number, since it is smaller than the sum of its proper divisors (8055177288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6904437642 is a wasteful number, since it uses less digits than its factorization.

6904437642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383579877 (or 383579874 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The square root of 6904437642 is about 83092.9458016744. The cubic root of 6904437642 is about 1904.1863042767.

The spelling of 6904437642 in words is "six billion, nine hundred four million, four hundred thirty-seven thousand, six hundred forty-two".