3642473809 has 8 divisors (see below), whose sum is σ = 3932550440. Its totient is φ = 3353809536.

The previous prime is 3642473801. The next prime is 3642473927. The reversal of 3642473809 is 9083742463.

It can be written as a sum of positive squares in 4 ways, for example, as 1374333184 + 2268140625 = 37072^2 + 47625^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3642473809 - 2³ = 3642473801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3642473801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347724 + ... + 358045.

It is an arithmetic number, because the mean of its divisors is an integer number (491568805).

Almost surely, 2^3642473809 is an apocalyptic number.

It is an amenable number.

3642473809 is a deficient number, since it is larger than the sum of its proper divisors (290076631).

3642473809 is a wasteful number, since it uses less digits than its factorization.

3642473809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706179.

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 3642473809 is about 60352.9105263367. The cubic root of 3642473809 is about 1538.6227368511.

The spelling of 3642473809 in words is "three billion, six hundred forty-two million, four hundred seventy-three thousand, eight hundred nine".