190974063481 has 4 divisors (see below), whose sum is σ = 201025330000. Its totient is φ = 180922796964.

The previous prime is 190974063451. The next prime is 190974063517. The reversal of 190974063481 is 184360479091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184360479091 = 41 ⋅4496597051.

It is a cyclic number.

It is not a de Polignac number, because 190974063481 - 2⁹ = 190974062969 is a prime.

It is a super-2 number, since 2×190974063481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190974063421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5025633231 + ... + 5025633268.

It is an arithmetic number, because the mean of its divisors is an integer number (50256332500).

Almost surely, 2^190974063481 is an apocalyptic number.

It is an amenable number.

190974063481 is a deficient number, since it is larger than the sum of its proper divisors (10051266519).

190974063481 is a wasteful number, since it uses less digits than its factorization.

190974063481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10051266518.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 190974063481 in words is "one hundred ninety billion, nine hundred seventy-four million, sixty-three thousand, four hundred eighty-one".