999401351932 has 24 divisors (see below), whose sum is σ = 1751823938592. Its totient is φ = 498880536000.

The previous prime is 999401351917. The next prime is 999401351951. The reversal of 999401351932 is 239153104999.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13908457 + ... + 13980127.

It is an arithmetic number, because the mean of its divisors is an integer number (72992664108).

Almost surely, 2^999401351932 is an apocalyptic number.

It is an amenable number.

999401351932 is a deficient number, since it is larger than the sum of its proper divisors (752422586660).

999401351932 is a wasteful number, since it uses less digits than its factorization.

999401351932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77349 (or 77347 counting only the distinct ones).

The product of its (nonzero) digits is 2361960, while the sum is 55.

The spelling of 999401351932 in words is "nine hundred ninety-nine billion, four hundred one million, three hundred fifty-one thousand, nine hundred thirty-two".