7222142865 has 64 divisors (see below), whose sum is σ = 13369370112. Its totient is φ = 3260928000.

The previous prime is 7222142843. The next prime is 7222142903. The reversal of 7222142865 is 5682412227.

It is not a de Polignac number, because 7222142865 - 2¹⁴ = 7222126481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8197225 + ... + 8198105.

It is an arithmetic number, because the mean of its divisors is an integer number (208896408).

Almost surely, 2^7222142865 is an apocalyptic number.

It is an amenable number.

7222142865 is a deficient number, since it is larger than the sum of its proper divisors (6147227247).

7222142865 is a wasteful number, since it uses less digits than its factorization.

7222142865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770.

The product of its digits is 107520, while the sum is 39.

The square root of 7222142865 is about 84983.1916616457. The cubic root of 7222142865 is about 1932.9562527729.

The spelling of 7222142865 in words is "seven billion, two hundred twenty-two million, one hundred forty-two thousand, eight hundred sixty-five".