7766275641 has 8 divisors (see below), whose sum is σ = 10380353760. Its totient is φ = 5164857312.

The previous prime is 7766275619. The next prime is 7766275667. The reversal of 7766275641 is 1465726677.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7766275641 - 2⁶ = 7766275577 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (7766275541) 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, 3163515 + ... + 3165968.

It is an arithmetic number, because the mean of its divisors is an integer number (1297544220).

Almost surely, 2^7766275641 is an apocalyptic number.

It is an amenable number.

7766275641 is a deficient number, since it is larger than the sum of its proper divisors (2614078119).

7766275641 is a wasteful number, since it uses less digits than its factorization.

7766275641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6329895.

The product of its digits is 2963520, while the sum is 51.

The square root of 7766275641 is about 88126.4752557369. The cubic root of 7766275641 is about 1980.3301528329.

The spelling of 7766275641 in words is "seven billion, seven hundred sixty-six million, two hundred seventy-five thousand, six hundred forty-one".