42194371900 has 36 divisors (see below), whose sum is σ = 91854384832. Its totient is φ = 16823813760.

The previous prime is 42194371883. The next prime is 42194371927. The reversal of 42194371900 is 917349124.

It is a super-2 number, since 2×42194371900² (a number of 22 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 642732 + ... + 705331.

Almost surely, 2^42194371900 is an apocalyptic number.

It is an amenable number.

42194371900 is an abundant number, since it is smaller than the sum of its proper divisors (49660012932).

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

42194371900 is a wasteful number, since it uses less digits than its factorization.

42194371900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348390 (or 1348383 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 42194371900 in words is "forty-two billion, one hundred ninety-four million, three hundred seventy-one thousand, nine hundred".