34478461899 has 12 divisors (see below), whose sum is σ = 56916826096. Its totient is φ = 19701978192.

The previous prime is 34478461879. The next prime is 34478461921. The reversal of 34478461899 is 99816487443.

34478461899 is a `hidden beast` number, since 3 + 4 + 4 + 7 + 8 + 4 + 618 + 9 + 9 = 666.

It is not a de Polignac number, because 34478461899 - 2²³ = 34470073291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 547277173 = 34478461899 / (3 + 4 + 4 + 7 + 8 + 4 + 6 + 1 + 8 + 9 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34478461859) 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, 273638524 + ... + 273638649.

Almost surely, 2^34478461899 is an apocalyptic number.

34478461899 is a deficient number, since it is larger than the sum of its proper divisors (22438364197).

34478461899 is a wasteful number, since it uses less digits than its factorization.

34478461899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547277186 (or 547277183 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 34478461899 in words is "thirty-four billion, four hundred seventy-eight million, four hundred sixty-one thousand, eight hundred ninety-nine".