761808648 has 32 divisors (see below), whose sum is σ = 2004760800. Its totient is φ = 240571008.

The previous prime is 761808647. The next prime is 761808701. The reversal of 761808648 is 846808167.

It is a junction number, because it is equal to n+sod(n) for n = 761808597 and 761808606.

It is not an unprimeable number, because it can be changed into a prime (761808647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834861 + ... + 835772.

It is an arithmetic number, because the mean of its divisors is an integer number (62648775).

Almost surely, 2^761808648 is an apocalyptic number.

It is an amenable number.

761808648 is an abundant number, since it is smaller than the sum of its proper divisors (1242952152).

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

761808648 is a wasteful number, since it uses less digits than its factorization.

761808648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670661 (or 1670657 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 761808648 is about 27600.8812902777. The cubic root of 761808648 is about 913.3038732868.

The spelling of 761808648 in words is "seven hundred sixty-one million, eight hundred eight thousand, six hundred forty-eight".