34194661820 has 48 divisors (see below), whose sum is σ = 78463728000. Its totient is φ = 12414285120.

The previous prime is 34194661789. The next prime is 34194661841. The reversal of 34194661820 is 2816649143.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10631 + ... + 261729.

It is an arithmetic number, because the mean of its divisors is an integer number (1634661000).

Almost surely, 2^34194661820 is an apocalyptic number.

It is an amenable number.

34194661820 is an abundant number, since it is smaller than the sum of its proper divisors (44269066180).

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

34194661820 is a wasteful number, since it uses less digits than its factorization.

34194661820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251738 (or 251736 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 34194661820 in words is "thirty-four billion, one hundred ninety-four million, six hundred sixty-one thousand, eight hundred twenty".