31059947076481 has 4 divisors (see below), whose sum is σ = 31078691765572. Its totient is φ = 31041202387392.

The previous prime is 31059947076469. The next prime is 31059947076523. The reversal of 31059947076481 is 18467074995013.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17656879636081 + 13403067440400 = 4202009^2 + 3661020^2 .

It is a cyclic number.

It is not a de Polignac number, because 31059947076481 - 2⁵ = 31059947076449 is a prime.

It is a super-2 number, since 2×31059947076481² (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 (31059947071481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9372342060 + ... + 9372345373.

It is an arithmetic number, because the mean of its divisors is an integer number (7769672941393).

Almost surely, 2^{31059947076481} is an apocalyptic number.

It is an amenable number.

31059947076481 is a deficient number, since it is larger than the sum of its proper divisors (18744689091).

31059947076481 is a wasteful number, since it uses less digits than its factorization.

31059947076481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18744689090.

The product of its (nonzero) digits is 45722880, while the sum is 64.

The spelling of 31059947076481 in words is "thirty-one trillion, fifty-nine billion, nine hundred forty-seven million, seventy-six thousand, four hundred eighty-one".