999524162572 has 48 divisors (see below), whose sum is σ = 1935157533120. Its totient is φ = 448728360192.

The previous prime is 999524162543. The next prime is 999524162573. The reversal of 999524162572 is 275261425999.

It is a self number, because there is not a number n which added to its sum of digits gives 999524162572.

It is not an unprimeable number, because it can be changed into a prime (999524162573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7178754 + ... + 7316662.

It is an arithmetic number, because the mean of its divisors is an integer number (40315781940).

Almost surely, 2^999524162572 is an apocalyptic number.

It is an amenable number.

999524162572 is a deficient number, since it is larger than the sum of its proper divisors (935633370548).

999524162572 is a wasteful number, since it uses less digits than its factorization.

999524162572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141730 (or 141728 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 61.

The spelling of 999524162572 in words is "nine hundred ninety-nine billion, five hundred twenty-four million, one hundred sixty-two thousand, five hundred seventy-two".