642222210590 has 8 divisors (see below), whose sum is σ = 1155999979080. Its totient is φ = 256888884232.

The previous prime is 642222210587. The next prime is 642222210599. The reversal of 642222210590 is 95012222246.

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

It is a super-3 number, since 3×642222210590³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 642222210590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642222210599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32111110520 + ... + 32111110539.

It is an arithmetic number, because the mean of its divisors is an integer number (144499997385).

Almost surely, 2^642222210590 is an apocalyptic number.

642222210590 is a deficient number, since it is larger than the sum of its proper divisors (513777768490).

642222210590 is a wasteful number, since it uses less digits than its factorization.

642222210590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64222221066.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 642222210590 in words is "six hundred forty-two billion, two hundred twenty-two million, two hundred ten thousand, five hundred ninety".