766734007740 has 96 divisors (see below), whose sum is σ = 2263609770240. Its totient is φ = 193378752000.

The previous prime is 766734007733. The next prime is 766734007799. The reversal of 766734007740 is 47700437667.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 125595 + ... + 1244685.

It is an arithmetic number, because the mean of its divisors is an integer number (23579268440).

Almost surely, 2^766734007740 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 766734007740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1131804885120).

766734007740 is an abundant number, since it is smaller than the sum of its proper divisors (1496875762500).

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

766734007740 is a wasteful number, since it uses less digits than its factorization.

766734007740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119723 (or 1119721 counting only the distinct ones).

The product of its (nonzero) digits is 4148928, while the sum is 51.

The spelling of 766734007740 in words is "seven hundred sixty-six billion, seven hundred thirty-four million, seven thousand, seven hundred forty".