31953452866 has 4 divisors (see below), whose sum is σ = 47930179302. Its totient is φ = 15976726432.

The previous prime is 31953452827. The next prime is 31953452893. The reversal of 31953452866 is 66825435913.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19436542225 + 12516910641 = 139415^2 + 111879^2 .

It is a super-2 number, since 2×31953452866² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7988363215 + ... + 7988363218.

Almost surely, 2^31953452866 is an apocalyptic number.

31953452866 is a deficient number, since it is larger than the sum of its proper divisors (15976726436).

31953452866 is a wasteful number, since it uses less digits than its factorization.

31953452866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15976726435.

The product of its digits is 4665600, while the sum is 52.

The spelling of 31953452866 in words is "thirty-one billion, nine hundred fifty-three million, four hundred fifty-two thousand, eight hundred sixty-six".