2308732231680 has 2016 divisors, whose sum is σ = 10151431056000. Its totient is φ = 483809034240.

The previous prime is 2308732231613. The next prime is 2308732231697. The reversal of 2308732231680 is 861322378032.

2308732231680 is a `hidden beast` number, since 2 + 3 + 0 + 8 + 7 + 322 + 316 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a super-2 number, since 2×2308732231680² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 74475233265 + ... + 74475233295.

Almost surely, 2^{2308732231680} is an apocalyptic number.

2308732231680 is a gapful number since it is divisible by the number (20) 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 2308732231680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5075715528000).

2308732231680 is an abundant number, since it is smaller than the sum of its proper divisors (7842698824320).

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

2308732231680 is an equidigital number, since it uses as much as digits as its factorization.

2308732231680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 2308732231680 in words is "two trillion, three hundred eight billion, seven hundred thirty-two million, two hundred thirty-one thousand, six hundred eighty".