31985092601 has 8 divisors (see below), whose sum is σ = 39877518144. Its totient is φ = 24923448720.

The previous prime is 31985092597. The next prime is 31985092603. The reversal of 31985092601 is 10629058913.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31985092601 - 2² = 31985092597 is a prime.

It is a super-2 number, since 2×31985092601² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31985092603) 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 7 ways as a sum of consecutive naturals, for example, 207695330 + ... + 207695483.

It is an arithmetic number, because the mean of its divisors is an integer number (4984689768).

Almost surely, 2^31985092601 is an apocalyptic number.

It is an amenable number.

31985092601 is a deficient number, since it is larger than the sum of its proper divisors (7892425543).

31985092601 is a wasteful number, since it uses less digits than its factorization.

31985092601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415390831.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 31985092601 in words is "thirty-one billion, nine hundred eighty-five million, ninety-two thousand, six hundred one".