197307081900 has 108 divisors (see below), whose sum is σ = 641353650392. Its totient is φ = 52615215360.

The previous prime is 197307081899. The next prime is 197307081901. The reversal of 197307081900 is 9180703791.

197307081900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (197307081899) and next prime (197307081901).

It is a tau number, because it is divible by the number of its divisors (108).

It is a super-2 number, since 2×197307081900² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (197307081901) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 4035517 + ... + 4084116.

Almost surely, 2^197307081900 is an apocalyptic number.

197307081900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197307081900 is an abundant number, since it is smaller than the sum of its proper divisors (444046568492).

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

197307081900 is a wasteful number, since it uses less digits than its factorization.

197307081900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8119662 (or 8119643 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The spelling of 197307081900 in words is "one hundred ninety-seven billion, three hundred seven million, eighty-one thousand, nine hundred".