31368040546858 has 4 divisors (see below), whose sum is σ = 47052060820290. Its totient is φ = 15684020273428.

The previous prime is 31368040546853. The next prime is 31368040546901. The reversal of 31368040546858 is 85864504086313.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 16400094388209 + 14967946158649 = 4049703^2 + 3868843^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31368040546796 and 31368040546805.

It is not an unprimeable number, because it can be changed into a prime (31368040546853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7842010136713 + ... + 7842010136716.

Almost surely, 2^{31368040546858} is an apocalyptic number.

31368040546858 is a deficient number, since it is larger than the sum of its proper divisors (15684020273432).

31368040546858 is a wasteful number, since it uses less digits than its factorization.

31368040546858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15684020273431.

The product of its (nonzero) digits is 66355200, while the sum is 61.

The spelling of 31368040546858 in words is "thirty-one trillion, three hundred sixty-eight billion, forty million, five hundred forty-six thousand, eight hundred fifty-eight".