31392400604 has 48 divisors (see below), whose sum is σ = 58109162496. Its totient is φ = 14815785600.

The previous prime is 31392400591. The next prime is 31392400619. The reversal of 31392400604 is 40600429313.

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, 4192544 + ... + 4200024.

It is an arithmetic number, because the mean of its divisors is an integer number (1210607552).

Almost surely, 2^31392400604 is an apocalyptic number.

It is an amenable number.

31392400604 is a deficient number, since it is larger than the sum of its proper divisors (26716761892).

31392400604 is a wasteful number, since it uses less digits than its factorization.

31392400604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8346 (or 8344 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 31392400604 its reverse (40600429313), we get a palindrome (71992829917).

The spelling of 31392400604 in words is "thirty-one billion, three hundred ninety-two million, four hundred thousand, six hundred four".