198501451342 has 4 divisors (see below), whose sum is σ = 297752177016. Its totient is φ = 99250725670.

The previous prime is 198501451331. The next prime is 198501451381. The reversal of 198501451342 is 243154105891.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49625362834 + ... + 49625362837.

It is an arithmetic number, because the mean of its divisors is an integer number (74438044254).

Almost surely, 2^198501451342 is an apocalyptic number.

198501451342 is a deficient number, since it is larger than the sum of its proper divisors (99250725674).

198501451342 is an equidigital number, since it uses as much as digits as its factorization.

198501451342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99250725673.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 198501451342 in words is "one hundred ninety-eight billion, five hundred one million, four hundred fifty-one thousand, three hundred forty-two".