31039943494 has 32 divisors (see below), whose sum is σ = 53623100160. Its totient is φ = 13199995872.

The previous prime is 31039943489. The next prime is 31039943521. The reversal of 31039943494 is 49434993013.

It is a happy number.

It is a super-2 number, since 2×31039943494² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5237617 + ... + 5243539.

It is an arithmetic number, because the mean of its divisors is an integer number (1675721880).

Almost surely, 2^31039943494 is an apocalyptic number.

31039943494 is a deficient number, since it is larger than the sum of its proper divisors (22583156666).

31039943494 is a wasteful number, since it uses less digits than its factorization.

31039943494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8764.

The product of its (nonzero) digits is 1259712, while the sum is 49.

The spelling of 31039943494 in words is "thirty-one billion, thirty-nine million, nine hundred forty-three thousand, four hundred ninety-four".