31343785439077 has 8 divisors (see below), whose sum is σ = 31350266479872. Its totient is φ = 31337304961200.

The previous prime is 31343785439069. The next prime is 31343785439123. The reversal of 31343785439077 is 77093458734313.

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 31343785439077 - 2³ = 31343785439069 is a prime.

It is a super-2 number, since 2×31343785439077² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31343785439027) 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, 121980628 + ... + 122237314.

It is an arithmetic number, because the mean of its divisors is an integer number (3918783309984).

Almost surely, 2^{31343785439077} is an apocalyptic number.

It is an amenable number.

31343785439077 is a deficient number, since it is larger than the sum of its proper divisors (6481040795).

31343785439077 is a wasteful number, since it uses less digits than its factorization.

31343785439077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281459.

The product of its (nonzero) digits is 160030080, while the sum is 64.

The spelling of 31343785439077 in words is "thirty-one trillion, three hundred forty-three billion, seven hundred eighty-five million, four hundred thirty-nine thousand, seventy-seven".