197059716642 has 16 divisors (see below), whose sum is σ = 394156543392. Its totient is φ = 65680387200.

The previous prime is 197059716559. The next prime is 197059716649. The reversal of 197059716642 is 246617950791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (197059716649) 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, 1476984 + ... + 1604867.

It is an arithmetic number, because the mean of its divisors is an integer number (24634783962).

Almost surely, 2^197059716642 is an apocalyptic number.

197059716642 is an abundant number, since it is smaller than the sum of its proper divisors (197096826750).

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

197059716642 is a wasteful number, since it uses less digits than its factorization.

197059716642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092513.

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 197059716642 in words is "one hundred ninety-seven billion, fifty-nine million, seven hundred sixteen thousand, six hundred forty-two".