4972091668 has 24 divisors (see below), whose sum is σ = 8797928832. Its totient is φ = 2458550304.

The previous prime is 4972091659. The next prime is 4972091713. The reversal of 4972091668 is 8661902794.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112705 + ... + 150487.

It is an arithmetic number, because the mean of its divisors is an integer number (366580368).

Almost surely, 2^4972091668 is an apocalyptic number.

It is an amenable number.

4972091668 is a deficient number, since it is larger than the sum of its proper divisors (3825837164).

4972091668 is a wasteful number, since it uses less digits than its factorization.

4972091668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38151 (or 38149 counting only the distinct ones).

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

The square root of 4972091668 is about 70513.0602654572. The cubic root of 4972091668 is about 1706.7885037904.

The spelling of 4972091668 in words is "four billion, nine hundred seventy-two million, ninety-one thousand, six hundred sixty-eight".