9142857772 has 12 divisors (see below), whose sum is σ = 16000714296. Its totient is φ = 4571225120.

The previous prime is 9142857767. The next prime is 9142857781. The reversal of 9142857772 is 2777582419.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99147 + ... + 167677.

It is an arithmetic number, because the mean of its divisors is an integer number (1333392858).

Almost surely, 2^9142857772 is an apocalyptic number.

It is an amenable number.

9142857772 is a deficient number, since it is larger than the sum of its proper divisors (6857856524).

9142857772 is a wasteful number, since it uses less digits than its factorization.

9142857772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101888 (or 101886 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 52.

The square root of 9142857772 is about 95618.2920366182. The cubic root of 9142857772 is about 2091.0318822619.

The spelling of 9142857772 in words is "nine billion, one hundred forty-two million, eight hundred fifty-seven thousand, seven hundred seventy-two".