197743715090 has 16 divisors (see below), whose sum is σ = 371414282688. Its totient is φ = 75658464816.

The previous prime is 197743715087. The next prime is 197743715093. The reversal of 197743715090 is 90517347791.

It is an interprime number because it is at equal distance from previous prime (197743715087) and next prime (197743715093).

It is not an unprimeable number, because it can be changed into a prime (197743715093) 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, 429877412 + ... + 429877871.

It is an arithmetic number, because the mean of its divisors is an integer number (23213392668).

Almost surely, 2^197743715090 is an apocalyptic number.

197743715090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197743715090 is a deficient number, since it is larger than the sum of its proper divisors (173670567598).

197743715090 is a wasteful number, since it uses less digits than its factorization.

197743715090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859755313.

The product of its (nonzero) digits is 1666980, while the sum is 53.

The spelling of 197743715090 in words is "one hundred ninety-seven billion, seven hundred forty-three million, seven hundred fifteen thousand, ninety".