991834296476 has 24 divisors (see below), whose sum is σ = 1738500378384. Its totient is φ = 495120084480.

The previous prime is 991834296407. The next prime is 991834296493. The reversal of 991834296476 is 674692438199.

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, 29220851 + ... + 29254773.

It is an arithmetic number, because the mean of its divisors is an integer number (72437515766).

Almost surely, 2^991834296476 is an apocalyptic number.

It is an amenable number.

991834296476 is a deficient number, since it is larger than the sum of its proper divisors (746666081908).

991834296476 is a wasteful number, since it uses less digits than its factorization.

991834296476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45461 (or 45459 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 68.

The spelling of 991834296476 in words is "nine hundred ninety-one billion, eight hundred thirty-four million, two hundred ninety-six thousand, four hundred seventy-six".