31873488000 has 256 divisors, whose sum is σ = 111224880000. Its totient is φ = 8052019200.

The previous prime is 31873487999. The next prime is 31873488029. The reversal of 31873488000 is 88437813.

It is a super-2 number, since 2×31873488000² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 894526 + ... + 929474.

Almost surely, 2^31873488000 is an apocalyptic number.

31873488000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31873488000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55612440000).

31873488000 is an abundant number, since it is smaller than the sum of its proper divisors (79351392000).

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

31873488000 is a wasteful number, since it uses less digits than its factorization.

31873488000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35000 (or 34978 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 31873488000 in words is "thirty-one billion, eight hundred seventy-three million, four hundred eighty-eight thousand".