755316780 has 144 divisors (see below), whose sum is σ = 2257567200. Its totient is φ = 188604416.

The previous prime is 755316773. The next prime is 755316791. The reversal of 755316780 is 87613557.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1681996 + ... + 1682444.

It is an arithmetic number, because the mean of its divisors is an integer number (15677550).

Almost surely, 2^755316780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 755316780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1128783600).

755316780 is an abundant number, since it is smaller than the sum of its proper divisors (1502250420).

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

755316780 is a wasteful number, since it uses less digits than its factorization.

755316780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 755316780 is about 27483.0271258462. The cubic root of 755316780 is about 910.7021831489.

The spelling of 755316780 in words is "seven hundred fifty-five million, three hundred sixteen thousand, seven hundred eighty".