197938658542 has 8 divisors (see below), whose sum is σ = 296923002696. Its totient is φ = 98964324312.

The previous prime is 197938658537. The next prime is 197938658591. The reversal of 197938658542 is 245856839791.

197938658542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2452848 + ... + 2532259.

It is an arithmetic number, because the mean of its divisors is an integer number (37115375337).

Almost surely, 2^197938658542 is an apocalyptic number.

197938658542 is a deficient number, since it is larger than the sum of its proper divisors (98984344154).

197938658542 is a wasteful number, since it uses less digits than its factorization.

197938658542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004962.

The product of its digits is 130636800, while the sum is 67.

The spelling of 197938658542 in words is "one hundred ninety-seven billion, nine hundred thirty-eight million, six hundred fifty-eight thousand, five hundred forty-two".