766761996 has 216 divisors, whose sum is σ = 2466554160. Its totient is φ = 183617280.

The previous prime is 766761979. The next prime is 766762019. The reversal of 766761996 is 699167667.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 924510 + ... + 925338.

Almost surely, 2^766761996 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 766761996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1233277080).

766761996 is an abundant number, since it is smaller than the sum of its proper divisors (1699792164).

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

766761996 is a wasteful number, since it uses less digits than its factorization.

766761996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 865 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 57.

The square root of 766761996 is about 27690.4676016856. The cubic root of 766761996 is about 915.2790596766.

The spelling of 766761996 in words is "seven hundred sixty-six million, seven hundred sixty-one thousand, nine hundred ninety-six".