493979109121 has 16 divisors (see below), whose sum is σ = 508883042304. Its totient is φ = 479158075584.

The previous prime is 493979109109. The next prime is 493979109161. The reversal of 493979109121 is 121901979394.

It is a cyclic number.

It is not a de Polignac number, because 493979109121 - 2¹⁷ = 493978978049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493979109161) 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, 38070991 + ... + 38083963.

It is an arithmetic number, because the mean of its divisors is an integer number (31805190144).

Almost surely, 2^493979109121 is an apocalyptic number.

It is an amenable number.

493979109121 is a deficient number, since it is larger than the sum of its proper divisors (14903933183).

493979109121 is a wasteful number, since it uses less digits than its factorization.

493979109121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16080.

The product of its (nonzero) digits is 1102248, while the sum is 55.

The spelling of 493979109121 in words is "four hundred ninety-three billion, nine hundred seventy-nine million, one hundred nine thousand, one hundred twenty-one".