197536838401 has 12 divisors (see below), whose sum is σ = 229873042800. Its totient is φ = 169254443400.

The previous prime is 197536838399. The next prime is 197536838423. The reversal of 197536838401 is 104838635791.

It is not a de Polignac number, because 197536838401 - 2¹ = 197536838399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197536838441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 614575 + ... + 879076.

It is an arithmetic number, because the mean of its divisors is an integer number (19156086900).

Almost surely, 2^197536838401 is an apocalyptic number.

It is an amenable number.

197536838401 is a deficient number, since it is larger than the sum of its proper divisors (32336204399).

197536838401 is a wasteful number, since it uses less digits than its factorization.

197536838401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496364 (or 1496357 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 197536838401 in words is "one hundred ninety-seven billion, five hundred thirty-six million, eight hundred thirty-eight thousand, four hundred one".