31740067206 has 24 divisors (see below), whose sum is σ = 71760152880. Its totient is φ = 10120021296.

The previous prime is 31740067189. The next prime is 31740067217. The reversal of 31740067206 is 60276004713.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38333001 + ... + 38333828.

It is an arithmetic number, because the mean of its divisors is an integer number (2990006370).

Almost surely, 2^31740067206 is an apocalyptic number.

31740067206 is an abundant number, since it is smaller than the sum of its proper divisors (40020085674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31740067206 is a wasteful number, since it uses less digits than its factorization.

31740067206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76666860 (or 76666857 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 31740067206 in words is "thirty-one billion, seven hundred forty million, sixty-seven thousand, two hundred six".