9923792490646 has 16 divisors (see below), whose sum is σ = 14893542301248. Its totient is φ = 4959279072000.

The previous prime is 9923792490637. The next prime is 9923792490659. The reversal of 9923792490646 is 6460942973299.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29628291 + ... + 29961361.

It is an arithmetic number, because the mean of its divisors is an integer number (930846393828).

Almost surely, 2^{9923792490646} is an apocalyptic number.

9923792490646 is a deficient number, since it is larger than the sum of its proper divisors (4969749810602).

9923792490646 is a wasteful number, since it uses less digits than its factorization.

9923792490646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340887.

The product of its (nonzero) digits is 317447424, while the sum is 70.

The spelling of 9923792490646 in words is "nine trillion, nine hundred twenty-three billion, seven hundred ninety-two million, four hundred ninety thousand, six hundred forty-six".