31742860173 has 16 divisors (see below), whose sum is σ = 45427337856. Its totient is φ = 19644249600.

The previous prime is 31742860111. The next prime is 31742860183. The reversal of 31742860173 is 37106824713.

It is not a de Polignac number, because 31742860173 - 2⁶ = 31742860109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31742860103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4259353 + ... + 4266798.

It is an arithmetic number, because the mean of its divisors is an integer number (2839208616).

Almost surely, 2^31742860173 is an apocalyptic number.

It is an amenable number.

31742860173 is a deficient number, since it is larger than the sum of its proper divisors (13684477683).

31742860173 is a wasteful number, since it uses less digits than its factorization.

31742860173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8526244.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 31742860173 in words is "thirty-one billion, seven hundred forty-two million, eight hundred sixty thousand, one hundred seventy-three".