31078668853 has 2 divisors, whose sum is σ = 31078668854. Its totient is φ = 31078668852.

The previous prime is 31078668839. The next prime is 31078668877. The reversal of 31078668853 is 35886687013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25453968849 + 5624700004 = 159543^2 + 74998^2 .

It is a cyclic number.

It is not a de Polignac number, because 31078668853 - 2¹³ = 31078660661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31078668794 and 31078668803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31078668253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15539334426 + 15539334427.

It is an arithmetic number, because the mean of its divisors is an integer number (15539334427).

Almost surely, 2^31078668853 is an apocalyptic number.

It is an amenable number.

31078668853 is a deficient number, since it is larger than the sum of its proper divisors (1).

31078668853 is an equidigital number, since it uses as much as digits as its factorization.

31078668853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 31078668853 in words is "thirty-one billion, seventy-eight million, six hundred sixty-eight thousand, eight hundred fifty-three".