197278401013 has 8 divisors (see below), whose sum is σ = 202087898496. Its totient is φ = 192478977600.

The previous prime is 197278401011. The next prime is 197278401017. The reversal of 197278401013 is 310104872791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197278401013 - 2¹ = 197278401011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197278401011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2478868 + ... + 2557213.

It is an arithmetic number, because the mean of its divisors is an integer number (25260987312).

Almost surely, 2^197278401013 is an apocalyptic number.

It is an amenable number.

197278401013 is a deficient number, since it is larger than the sum of its proper divisors (4809497483).

197278401013 is an equidigital number, since it uses as much as digits as its factorization.

197278401013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5037035.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 197278401013 in words is "one hundred ninety-seven billion, two hundred seventy-eight million, four hundred one thousand, thirteen".