999412896724 has 24 divisors (see below), whose sum is σ = 1943969515488. Its totient is φ = 445707294240.

The previous prime is 999412896707. The next prime is 999412896737. The reversal of 999412896724 is 427698214999.

999412896724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×999412896724² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 214280022 + ... + 214284685.

It is an arithmetic number, because the mean of its divisors is an integer number (80998729812).

Almost surely, 2^999412896724 is an apocalyptic number.

It is an amenable number.

999412896724 is a deficient number, since it is larger than the sum of its proper divisors (944556618764).

999412896724 is a wasteful number, since it uses less digits than its factorization.

999412896724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428564775 (or 428564773 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 70.

The spelling of 999412896724 in words is "nine hundred ninety-nine billion, four hundred twelve million, eight hundred ninety-six thousand, seven hundred twenty-four".