486494890801921 has 16 divisors (see below), whose sum is σ = 494925042619584. Its totient is φ = 478099360499904.

The previous prime is 486494890801883. The next prime is 486494890801961. The reversal of 486494890801921 is 129108098494684.

It is a cyclic number.

It is not a de Polignac number, because 486494890801921 - 2³⁷ = 486357451848449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (486494890801961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270179235 + ... + 271973911.

It is an arithmetic number, because the mean of its divisors is an integer number (30932815163724).

Almost surely, 2^{486494890801921} is an apocalyptic number.

It is an amenable number.

486494890801921 is a deficient number, since it is larger than the sum of its proper divisors (8430151817663).

486494890801921 is a wasteful number, since it uses less digits than its factorization.

486494890801921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804320.

The product of its (nonzero) digits is 286654464, while the sum is 73.

The spelling of 486494890801921 in words is "four hundred eighty-six trillion, four hundred ninety-four billion, eight hundred ninety million, eight hundred one thousand, nine hundred twenty-one".