87850747920 has 160 divisors (see below), whose sum is σ = 293396971392. Its totient is φ = 21616644096.

The previous prime is 87850747913. The next prime is 87850747939. The reversal of 87850747920 is 2974705878.

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, 15949807 + ... + 15955313.

Almost surely, 2^87850747920 is an apocalyptic number.

87850747920 is a gapful number since it is divisible by the number (80) 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 87850747920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146698485696).

87850747920 is an abundant number, since it is smaller than the sum of its proper divisors (205546223472).

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

87850747920 is a wasteful number, since it uses less digits than its factorization.

87850747920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10649 (or 10643 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 57.

The spelling of 87850747920 in words is "eighty-seven billion, eight hundred fifty million, seven hundred forty-seven thousand, nine hundred twenty".