3091780080 has 120 divisors (see below), whose sum is σ = 10400843232. Its totient is φ = 823076352.

The previous prime is 3091780061. The next prime is 3091780141. The reversal of 3091780080 is 800871903.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-3 number, since 3×3091780080³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 462522 + ... + 469158.

Almost surely, 2^3091780080 is an apocalyptic number.

3091780080 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 3091780080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5200421616).

3091780080 is an abundant number, since it is smaller than the sum of its proper divisors (7309063152).

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

3091780080 is a wasteful number, since it uses less digits than its factorization.

3091780080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7303 (or 7294 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 3091780080 is about 55603.7775695141. Note that the first 3 decimals coincide. The cubic root of 3091780080 is about 1456.8098355780.

The spelling of 3091780080 in words is "three billion, ninety-one million, seven hundred eighty thousand, eighty".