197485914940 has 48 divisors (see below), whose sum is σ = 418832406720. Its totient is φ = 78211445760.

The previous prime is 197485914917. The next prime is 197485914979. The reversal of 197485914940 is 49419584791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19608226 + ... + 19618294.

It is an arithmetic number, because the mean of its divisors is an integer number (8725675140).

Almost surely, 2^197485914940 is an apocalyptic number.

197485914940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197485914940 is an abundant number, since it is smaller than the sum of its proper divisors (221346491780).

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

197485914940 is a wasteful number, since it uses less digits than its factorization.

197485914940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19702 (or 19700 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 197485914940 in words is "one hundred ninety-seven billion, four hundred eighty-five million, nine hundred fourteen thousand, nine hundred forty".