761506664 has 8 divisors (see below), whose sum is σ = 1427825010. Its totient is φ = 380753328.

The previous prime is 761506649. The next prime is 761506673. The reversal of 761506664 is 466605167.

It can be written as a sum of positive squares in only one way, i.e., 473932900 + 287573764 = 21770^2 + 16958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47594159 + ... + 47594174.

Almost surely, 2^761506664 is an apocalyptic number.

It is an amenable number.

761506664 is a deficient number, since it is larger than the sum of its proper divisors (666318346).

761506664 is a wasteful number, since it uses less digits than its factorization.

761506664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95188339 (or 95188335 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 761506664 is about 27595.4101980746. The cubic root of 761506664 is about 913.1831782327.

The spelling of 761506664 in words is "seven hundred sixty-one million, five hundred six thousand, six hundred sixty-four".