761841664 has 96 divisors (see below), whose sum is σ = 1604322720. Its totient is φ = 361267200.

The previous prime is 761841649. The next prime is 761841697. The reversal of 761841664 is 466148167.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 761841664.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3610519 + ... + 3610729.

It is an arithmetic number, because the mean of its divisors is an integer number (16711695).

Almost surely, 2^761841664 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 761841664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802161360).

761841664 is an abundant number, since it is smaller than the sum of its proper divisors (842481056).

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

761841664 is a wasteful number, since it uses less digits than its factorization.

761841664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 297 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 761841664 is about 27601.4793806419. The cubic root of 761841664 is about 913.3170669784.

The spelling of 761841664 in words is "seven hundred sixty-one million, eight hundred forty-one thousand, six hundred sixty-four".