7422170642 has 4 divisors (see below), whose sum is σ = 11133255966. Its totient is φ = 3711085320.

The previous prime is 7422170611. The next prime is 7422170663. The reversal of 7422170642 is 2460712247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7094524441 + 327646201 = 84229^2 + 18101^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1855542659 + ... + 1855542662.

Almost surely, 2^7422170642 is an apocalyptic number.

7422170642 is a deficient number, since it is larger than the sum of its proper divisors (3711085324).

7422170642 is a wasteful number, since it uses less digits than its factorization.

7422170642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711085323.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 7422170642 is about 86152.0205334733. The cubic root of 7422170642 is about 1950.6393382013.

Adding to 7422170642 its reverse (2460712247), we get a palindrome (9882882889).

The spelling of 7422170642 in words is "seven billion, four hundred twenty-two million, one hundred seventy thousand, six hundred forty-two".