642519483 has 8 divisors (see below), whose sum is σ = 856812096. Its totient is φ = 428286600.

The previous prime is 642519473. The next prime is 642519491. The reversal of 642519483 is 384915246.

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

It is not a de Polignac number, because 642519483 - 2⁹ = 642518971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642519443) 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, 26968 + ... + 44858.

It is an arithmetic number, because the mean of its divisors is an integer number (107101512).

Almost surely, 2^642519483 is an apocalyptic number.

642519483 is a deficient number, since it is larger than the sum of its proper divisors (214292613).

642519483 is a wasteful number, since it uses less digits than its factorization.

642519483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29865.

The product of its digits is 207360, while the sum is 42.

The square root of 642519483 is about 25347.9680250706. The cubic root of 642519483 is about 862.9032414803.

The spelling of 642519483 in words is "six hundred forty-two million, five hundred nineteen thousand, four hundred eighty-three".