7142889290 has 16 divisors (see below), whose sum is σ = 12863066112. Its totient is φ = 2855852304.

The previous prime is 7142889263. The next prime is 7142889301. The reversal of 7142889290 is 929882417.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139754 + ... + 183893.

It is an arithmetic number, because the mean of its divisors is an integer number (803941632).

Almost surely, 2^7142889290 is an apocalyptic number.

7142889290 is a deficient number, since it is larger than the sum of its proper divisors (5720176822).

7142889290 is a wasteful number, since it uses less digits than its factorization.

7142889290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325861.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 7142889290 is about 84515.6156576996. The cubic root of 7142889290 is about 1925.8596747202.

The spelling of 7142889290 in words is "seven billion, one hundred forty-two million, eight hundred eighty-nine thousand, two hundred ninety".