191803973460 has 48 divisors (see below), whose sum is σ = 585873957312. Its totient is φ = 46497932800.

The previous prime is 191803973453. The next prime is 191803973461. The reversal of 191803973460 is 64379308191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191803973461) 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, 145305381 + ... + 145306700.

It is an arithmetic number, because the mean of its divisors is an integer number (12205707444).

Almost surely, 2^191803973460 is an apocalyptic number.

191803973460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

191803973460 is an abundant number, since it is smaller than the sum of its proper divisors (394069983852).

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

191803973460 is a wasteful number, since it uses less digits than its factorization.

191803973460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290612104 (or 290612102 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 191803973460 in words is "one hundred ninety-one billion, eight hundred three million, nine hundred seventy-three thousand, four hundred sixty".