191415470748804 has 27 divisors (see below), whose sum is σ = 483855983117143. Its totient is φ = 63805129245672.

The previous prime is 191415470748773. The next prime is 191415470748809. The reversal of 191415470748804 is 408847074514191.

The square root of 191415470748804 is 13835298.

It is a perfect power (a square), and thus also a powerful number.

191415470748804 is a `hidden beast` number, since 1 + 9 + 1 + 4 + 1 + 547 + 0 + 7 + 4 + 8 + 80 + 4 = 666.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (191415470748809) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 81858847 + ... + 84164729.

Almost surely, 2^{191415470748804} is an apocalyptic number.

191415470748804 is the 13835298-th square number.

It is an amenable number.

191415470748804 is an abundant number, since it is smaller than the sum of its proper divisors (292440512368339).

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

191415470748804 is an frugal number, since it uses more digits than its factorization.

191415470748804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611776 (or 2305888 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 63.

The spelling of 191415470748804 in words is "one hundred ninety-one trillion, four hundred fifteen billion, four hundred seventy million, seven hundred forty-eight thousand, eight hundred four".