191047127004 has 36 divisors (see below), whose sum is σ = 482941247880. Its totient is φ = 63680191200.

The previous prime is 191047126987. The next prime is 191047127059. The reversal of 191047127004 is 400721740191.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 191047127004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1239442 + ... + 1385030.

Almost surely, 2^191047127004 is an apocalyptic number.

It is an amenable number.

191047127004 is an abundant number, since it is smaller than the sum of its proper divisors (291894120876).

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

191047127004 is a wasteful number, since it uses less digits than its factorization.

191047127004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182050 (or 182045 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

Adding to 191047127004 its reverse (400721740191), we get a palindrome (591768867195).

The spelling of 191047127004 in words is "one hundred ninety-one billion, forty-seven million, one hundred twenty-seven thousand, four".