31764416302081 has 16 divisors (see below), whose sum is σ = 33679245626064. Its totient is φ = 29854751422464.

The previous prime is 31764416302079. The next prime is 31764416302103. The reversal of 31764416302081 is 18020361446713.

It can be written as a sum of positive squares in 8 ways, for example, as 979496193025 + 30784920109056 = 989695^2 + 5548416^2 .

It is a cyclic number.

It is not a de Polignac number, because 31764416302081 - 2¹ = 31764416302079 is a prime.

It is a super-2 number, since 2×31764416302081² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31764416300081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63157501 + ... + 63658453.

It is an arithmetic number, because the mean of its divisors is an integer number (2104952851629).

Almost surely, 2^{31764416302081} is an apocalyptic number.

It is an amenable number.

31764416302081 is a deficient number, since it is larger than the sum of its proper divisors (1914829323983).

31764416302081 is a wasteful number, since it uses less digits than its factorization.

31764416302081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506100.

The product of its (nonzero) digits is 580608, while the sum is 46.

Adding to 31764416302081 its reverse (18020361446713), we get a palindrome (49784777748794).

The spelling of 31764416302081 in words is "thirty-one trillion, seven hundred sixty-four billion, four hundred sixteen million, three hundred two thousand, eighty-one".