31421476724 has 24 divisors (see below), whose sum is σ = 60808194048. Its totient is φ = 14086837440.

The previous prime is 31421476711. The next prime is 31421476733. The reversal of 31421476724 is 42767412413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4888052 + ... + 4894475.

It is an arithmetic number, because the mean of its divisors is an integer number (2533674752).

Almost surely, 2^31421476724 is an apocalyptic number.

It is an amenable number.

31421476724 is a deficient number, since it is larger than the sum of its proper divisors (29386717324).

31421476724 is a wasteful number, since it uses less digits than its factorization.

31421476724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9782615 (or 9782613 counting only the distinct ones).

The product of its digits is 225792, while the sum is 41.

The spelling of 31421476724 in words is "thirty-one billion, four hundred twenty-one million, four hundred seventy-six thousand, seven hundred twenty-four".