491350418252 has 12 divisors (see below), whose sum is σ = 887600755776. Its totient is φ = 237750202320.

The previous prime is 491350418189. The next prime is 491350418267. The reversal of 491350418252 is 252814053194.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1981251563 + ... + 1981251810.

It is an arithmetic number, because the mean of its divisors is an integer number (73966729648).

Almost surely, 2^491350418252 is an apocalyptic number.

It is an amenable number.

491350418252 is a deficient number, since it is larger than the sum of its proper divisors (396250337524).

491350418252 is a wasteful number, since it uses less digits than its factorization.

491350418252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3962503408 (or 3962503406 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 491350418252 in words is "four hundred ninety-one billion, three hundred fifty million, four hundred eighteen thousand, two hundred fifty-two".