385528717680 has 160 divisors (see below), whose sum is σ = 1248079117824. Its totient is φ = 98260681728.

The previous prime is 385528717667. The next prime is 385528717681. The reversal of 385528717680 is 86717825583.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385528717681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7187922 + ... + 7241358.

Almost surely, 2^385528717680 is an apocalyptic number.

385528717680 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 385528717680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624039558912).

385528717680 is an abundant number, since it is smaller than the sum of its proper divisors (862550400144).

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

385528717680 is a wasteful number, since it uses less digits than its factorization.

385528717680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54783 (or 54777 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 60.

The spelling of 385528717680 in words is "three hundred eighty-five billion, five hundred twenty-eight million, seven hundred seventeen thousand, six hundred eighty".