191201676258 has 16 divisors (see below), whose sum is σ = 383891306400. Its totient is φ = 63485899776.

The previous prime is 191201676151. The next prime is 191201676283. The reversal of 191201676258 is 852676102191.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61996408 + ... + 61999491.

It is an arithmetic number, because the mean of its divisors is an integer number (23993206650).

Almost surely, 2^191201676258 is an apocalyptic number.

191201676258 is an abundant number, since it is smaller than the sum of its proper divisors (192689630142).

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

191201676258 is a wasteful number, since it uses less digits than its factorization.

191201676258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123996161.

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 191201676258 in words is "one hundred ninety-one billion, two hundred one million, six hundred seventy-six thousand, two hundred fifty-eight".