8940517975 has 12 divisors (see below), whose sum is σ = 11132635680. Its totient is φ = 7122483200.

The previous prime is 8940517973. The next prime is 8940517997. The reversal of 8940517975 is 5797150498.

It is a happy number.

It is not a de Polignac number, because 8940517975 - 2¹ = 8940517973 is a prime.

It is a super-2 number, since 2×8940517975² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8940517973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 742186 + ... + 754135.

It is an arithmetic number, because the mean of its divisors is an integer number (927719640).

Almost surely, 2^8940517975 is an apocalyptic number.

8940517975 is a deficient number, since it is larger than the sum of its proper divisors (2192117705).

8940517975 is a wasteful number, since it uses less digits than its factorization.

8940517975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496570 (or 1496565 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 55.

The square root of 8940517975 is about 94554.3123025069. The cubic root of 8940517975 is about 2075.4911867623.

The spelling of 8940517975 in words is "eight billion, nine hundred forty million, five hundred seventeen thousand, nine hundred seventy-five".