642010017322 has 32 divisors (see below), whose sum is σ = 1012423473792. Its totient is φ = 304745827584.

The previous prime is 642010017277. The next prime is 642010017323. The reversal of 642010017322 is 223710010246.

It is not an unprimeable number, because it can be changed into a prime (642010017323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53958078 + ... + 53969974.

It is an arithmetic number, because the mean of its divisors is an integer number (31638233556).

Almost surely, 2^642010017322 is an apocalyptic number.

642010017322 is a deficient number, since it is larger than the sum of its proper divisors (370413456470).

642010017322 is a wasteful number, since it uses less digits than its factorization.

642010017322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20622.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 642010017322 its reverse (223710010246), we get a palindrome (865720027568).

The spelling of 642010017322 in words is "six hundred forty-two billion, ten million, seventeen thousand, three hundred twenty-two".