191454670916 has 24 divisors (see below), whose sum is σ = 348413667840. Its totient is φ = 91942474400.

The previous prime is 191454670889. The next prime is 191454670933. The reversal of 191454670916 is 619076454191.

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, 4298450 + ... + 4342761.

It is an arithmetic number, because the mean of its divisors is an integer number (14517236160).

Almost surely, 2^191454670916 is an apocalyptic number.

It is an amenable number.

191454670916 is a deficient number, since it is larger than the sum of its proper divisors (156958996924).

191454670916 is a wasteful number, since it uses less digits than its factorization.

191454670916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8641435 (or 8641433 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 191454670916 in words is "one hundred ninety-one billion, four hundred fifty-four million, six hundred seventy thousand, nine hundred sixteen".