642196275 has 24 divisors (see below), whose sum is σ = 1213446144. Its totient is φ = 293575200.

The previous prime is 642196253. The next prime is 642196319. The reversal of 642196275 is 572691246.

It is not a de Polignac number, because 642196275 - 2⁶ = 642196211 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 611091 + ... + 612140.

It is an arithmetic number, because the mean of its divisors is an integer number (50560256).

Almost surely, 2^642196275 is an apocalyptic number.

642196275 is a deficient number, since it is larger than the sum of its proper divisors (571249869).

642196275 is a wasteful number, since it uses less digits than its factorization.

642196275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223251 (or 1223246 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 642196275 is about 25341.5918008321. The cubic root of 642196275 is about 862.7585278355.

The spelling of 642196275 in words is "six hundred forty-two million, one hundred ninety-six thousand, two hundred seventy-five".