197279365420 has 24 divisors (see below), whose sum is σ = 414317804544. Its totient is φ = 78905815296.

The previous prime is 197279365357. The next prime is 197279365421. The reversal of 197279365420 is 24563972791.

197279365420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (197279365421) 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, 92844 + ... + 634963.

It is an arithmetic number, because the mean of its divisors is an integer number (17263241856).

Almost surely, 2^197279365420 is an apocalyptic number.

197279365420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197279365420 is an abundant number, since it is smaller than the sum of its proper divisors (217038439124).

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

197279365420 is a wasteful number, since it uses less digits than its factorization.

197279365420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741369 (or 741367 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 197279365420 in words is "one hundred ninety-seven billion, two hundred seventy-nine million, three hundred sixty-five thousand, four hundred twenty".