31373064063 has 24 divisors (see below), whose sum is σ = 50586032640. Its totient is φ = 18571790160.

The previous prime is 31373063989. The next prime is 31373064131. The reversal of 31373064063 is 36046037313.

31373064063 is a `hidden beast` number, since 3 + 1 + 3 + 7 + 3 + 0 + 640 + 6 + 3 = 666.

It is not a de Polignac number, because 31373064063 - 2¹² = 31373059967 is a prime.

It is a super-2 number, since 2×31373064063² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31373064263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3680623 + ... + 3689136.

It is an arithmetic number, because the mean of its divisors is an integer number (2107751360).

Almost surely, 2^31373064063 is an apocalyptic number.

31373064063 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31373064063 is a deficient number, since it is larger than the sum of its proper divisors (19212968577).

31373064063 is a wasteful number, since it uses less digits than its factorization.

31373064063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7369819 (or 7369816 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 36.

The spelling of 31373064063 in words is "thirty-one billion, three hundred seventy-three million, sixty-four thousand, sixty-three".