770741664 has 192 divisors, whose sum is σ = 2545385472. Its totient is φ = 198374400.

The previous prime is 770741641. The next prime is 770741677. The reversal of 770741664 is 466147077.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 938374 + ... + 939194.

It is an arithmetic number, because the mean of its divisors is an integer number (13257216).

Almost surely, 2^770741664 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 770741664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1272692736).

770741664 is an abundant number, since it is smaller than the sum of its proper divisors (1774643808).

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

770741664 is a wasteful number, since it uses less digits than its factorization.

770741664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 770741664 is about 27762.2344922018. The cubic root of 770741664 is about 916.8598296770.

The spelling of 770741664 in words is "seven hundred seventy million, seven hundred forty-one thousand, six hundred sixty-four".