3157783680 has 128 divisors (see below), whose sum is σ = 10085613120. Its totient is φ = 840388608.

The previous prime is 3157783669. The next prime is 3157783693. The reversal of 3157783680 is 863877513.

3157783680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175619 + ... + 1178301.

Almost surely, 2^3157783680 is an apocalyptic number.

3157783680 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 3157783680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5042806560).

3157783680 is an abundant number, since it is smaller than the sum of its proper divisors (6927829440).

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

3157783680 is a wasteful number, since it uses less digits than its factorization.

3157783680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318 (or 3306 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 3157783680 is about 56194.1605507191. The cubic root of 3157783680 is about 1467.1036310510.

The spelling of 3157783680 in words is "three billion, one hundred fifty-seven million, seven hundred eighty-three thousand, six hundred eighty".