3612778080 has 96 divisors (see below), whose sum is σ = 11493080928. Its totient is φ = 953856000.

The previous prime is 3612778079. The next prime is 3612778109. The reversal of 3612778080 is 808772163.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11220 + ... + 85740.

It is an arithmetic number, because the mean of its divisors is an integer number (119719593).

Almost surely, 2^3612778080 is an apocalyptic number.

3612778080 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 3612778080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5746540464).

3612778080 is an abundant number, since it is smaller than the sum of its proper divisors (7880302848).

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

3612778080 is a wasteful number, since it uses less digits than its factorization.

3612778080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74640 (or 74632 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 3612778080 is about 60106.3896769719. The cubic root of 3612778080 is about 1534.4300500849.

The spelling of 3612778080 in words is "three billion, six hundred twelve million, seven hundred seventy-eight thousand, eighty".