424891850991 has 32 divisors (see below), whose sum is σ = 581321072640. Its totient is φ = 275899859424.

The previous prime is 424891850987. The next prime is 424891850993. The reversal of 424891850991 is 199058198424.

It is not a de Polignac number, because 424891850991 - 2² = 424891850987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424891850993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105718780 + ... + 105722798.

It is an arithmetic number, because the mean of its divisors is an integer number (18166283520).

Almost surely, 2^424891850991 is an apocalyptic number.

424891850991 is a deficient number, since it is larger than the sum of its proper divisors (156429221649).

424891850991 is a wasteful number, since it uses less digits than its factorization.

424891850991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6155.

The product of its (nonzero) digits is 7464960, while the sum is 60.

The spelling of 424891850991 in words is "four hundred twenty-four billion, eight hundred ninety-one million, eight hundred fifty thousand, nine hundred ninety-one".