197146905880 has 32 divisors (see below), whose sum is σ = 443924249040. Its totient is φ = 78797658240.

The previous prime is 197146905871. The next prime is 197146905881. The reversal of 197146905880 is 88509641791.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197146905881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857219 + ... + 1960498.

Almost surely, 2^197146905880 is an apocalyptic number.

197146905880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197146905880 is an abundant number, since it is smaller than the sum of its proper divisors (246777343160).

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

197146905880 is a wasteful number, since it uses less digits than its factorization.

197146905880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819019 (or 3819015 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 197146905880 in words is "one hundred ninety-seven billion, one hundred forty-six million, nine hundred five thousand, eight hundred eighty".