1768740780 has 96 divisors (see below), whose sum is σ = 5240793600. Its totient is φ = 444469248.

The previous prime is 1768740739. The next prime is 1768740791. The reversal of 1768740780 is 870478671.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216001 + ... + 224039.

It is an arithmetic number, because the mean of its divisors is an integer number (54591600).

Almost surely, 2^1768740780 is an apocalyptic number.

1768740780 is a gapful number since it is divisible by the number (10) 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 1768740780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2620396800).

1768740780 is an abundant number, since it is smaller than the sum of its proper divisors (3472052820).

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

1768740780 is a wasteful number, since it uses less digits than its factorization.

1768740780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8263 (or 8261 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 48.

The square root of 1768740780 is about 42056.3999885868. The cubic root of 1768740780 is about 1209.3575762434.

The spelling of 1768740780 in words is "one billion, seven hundred sixty-eight million, seven hundred forty thousand, seven hundred eighty".