189191946248 has 16 divisors (see below), whose sum is σ = 366177960960. Its totient is φ = 91544490000.

The previous prime is 189191946227. The next prime is 189191946259. The reversal of 189191946248 is 842649191981.

It is a happy number.

It is a super-2 number, since 2×189191946248² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381435128 + ... + 381435623.

It is an arithmetic number, because the mean of its divisors is an integer number (22886122560).

Almost surely, 2^189191946248 is an apocalyptic number.

It is an amenable number.

189191946248 is a deficient number, since it is larger than the sum of its proper divisors (176986014712).

189191946248 is a wasteful number, since it uses less digits than its factorization.

189191946248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762870788 (or 762870784 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 62.

The spelling of 189191946248 in words is "one hundred eighty-nine billion, one hundred ninety-one million, nine hundred forty-six thousand, two hundred forty-eight".