197039894942 has 32 divisors (see below), whose sum is σ = 345540777984. Its totient is φ = 83354119200.

The previous prime is 197039894941. The next prime is 197039894959. The reversal of 197039894942 is 249498930791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197039894941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5243534 + ... + 5280977.

It is an arithmetic number, because the mean of its divisors is an integer number (10798149312).

Almost surely, 2^197039894942 is an apocalyptic number.

197039894942 is a deficient number, since it is larger than the sum of its proper divisors (148500883042).

197039894942 is a wasteful number, since it uses less digits than its factorization.

197039894942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10524584.

The product of its (nonzero) digits is 35271936, while the sum is 65.

The spelling of 197039894942 in words is "one hundred ninety-seven billion, thirty-nine million, eight hundred ninety-four thousand, nine hundred forty-two".