197530886420 has 72 divisors (see below), whose sum is σ = 482631778944. Its totient is φ = 67711957824.

The previous prime is 197530886383. The next prime is 197530886467. The reversal of 197530886420 is 24688035791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6121649 + ... + 6153831.

It is an arithmetic number, because the mean of its divisors is an integer number (6703219152).

It is a 2-persistent number, because it is pandigital, and so is 2⋅197530886420 = 395061772840, but 3⋅197530886420 = 592592659260 is not.

Almost surely, 2^197530886420 is an apocalyptic number.

197530886420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197530886420 is an abundant number, since it is smaller than the sum of its proper divisors (285100892524).

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

197530886420 is a wasteful number, since it uses less digits than its factorization.

197530886420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38469 (or 38460 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 197530886420 in words is "one hundred ninety-seven billion, five hundred thirty million, eight hundred eighty-six thousand, four hundred twenty".