31887523060 has 24 divisors (see below), whose sum is σ = 67963260960. Its totient is φ = 12564635424.

The previous prime is 31887523051. The next prime is 31887523079. The reversal of 31887523060 is 6032578813.

It is a junction number, because it is equal to n+sod(n) for n = 31887522998 and 31887523016.

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, 11896990 + ... + 11899669.

It is an arithmetic number, because the mean of its divisors is an integer number (2831802540).

Almost surely, 2^31887523060 is an apocalyptic number.

It is an amenable number.

31887523060 is an abundant number, since it is smaller than the sum of its proper divisors (36075737900).

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

31887523060 is a wasteful number, since it uses less digits than its factorization.

31887523060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23796735 (or 23796733 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 31887523060 in words is "thirty-one billion, eight hundred eighty-seven million, five hundred twenty-three thousand, sixty".