349865497836 has 36 divisors (see below), whose sum is σ = 884477457864. Its totient is φ = 116609275200.

The previous prime is 349865497799. The next prime is 349865497837. The reversal of 349865497836 is 638794568943.

349865497836 is a `hidden beast` number, since 3 + 4 + 9 + 8 + 6 + 549 + 78 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (349865497837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181185 + ... + 855896.

It is an arithmetic number, because the mean of its divisors is an integer number (24568818274).

Almost surely, 2^349865497836 is an apocalyptic number.

349865497836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

349865497836 is an abundant number, since it is smaller than the sum of its proper divisors (534611960028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349865497836 is a wasteful number, since it uses less digits than its factorization.

349865497836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046462 (or 1046457 counting only the distinct ones).

The product of its digits is 940584960, while the sum is 72.

The spelling of 349865497836 in words is "three hundred forty-nine billion, eight hundred sixty-five million, four hundred ninety-seven thousand, eight hundred thirty-six".