31929385913641 has 8 divisors (see below), whose sum is σ = 31943828932704. Its totient is φ = 31914943371360.

The previous prime is 31929385913639. The next prime is 31929385913669. The reversal of 31929385913641 is 14631958392913.

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 31929385913641 - 2¹ = 31929385913639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31929385913141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257576446 + ... + 257700376.

It is an arithmetic number, because the mean of its divisors is an integer number (3992978616588).

Almost surely, 2^{31929385913641} is an apocalyptic number.

It is an amenable number.

31929385913641 is a deficient number, since it is larger than the sum of its proper divisors (14443019063).

31929385913641 is a wasteful number, since it uses less digits than its factorization.

31929385913641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238391.

The product of its digits is 37791360, while the sum is 64.

The spelling of 31929385913641 in words is "thirty-one trillion, nine hundred twenty-nine billion, three hundred eighty-five million, nine hundred thirteen thousand, six hundred forty-one".