7760643912 has 384 divisors, whose sum is σ = 26215200000. Its totient is φ = 2126113920.

The previous prime is 7760643911. The next prime is 7760643937. The reversal of 7760643912 is 2193460677.

7760643912 is a `hidden beast` number, since 7 + 7 + 606 + 4 + 39 + 1 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (7760643911) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71198514 + ... + 71198622.

It is an arithmetic number, because the mean of its divisors is an integer number (68268750).

Almost surely, 2^7760643912 is an apocalyptic number.

7760643912 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7760643912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13107600000).

7760643912 is an abundant number, since it is smaller than the sum of its proper divisors (18454556088).

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

7760643912 is a wasteful number, since it uses less digits than its factorization.

7760643912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 7760643912 is about 88094.5169235861. The cubic root of 7760643912 is about 1979.8513570691.

The spelling of 7760643912 in words is "seven billion, seven hundred sixty million, six hundred forty-three thousand, nine hundred twelve".