7766669049 has 8 divisors (see below), whose sum is σ = 10805800512. Its totient is φ = 4952658480.

The previous prime is 7766668981. The next prime is 7766669089. The reversal of 7766669049 is 9409666677.

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

It is not a de Polignac number, because 7766669049 - 2⁹ = 7766668537 is a prime.

It is a super-2 number, since 2×7766669049² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7766668983 and 7766669001.

It is not an unprimeable number, because it can be changed into a prime (7766669089) 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, 56280142 + ... + 56280279.

It is an arithmetic number, because the mean of its divisors is an integer number (1350725064).

Almost surely, 2^7766669049 is an apocalyptic number.

It is an amenable number.

7766669049 is a deficient number, since it is larger than the sum of its proper divisors (3039131463).

7766669049 is a wasteful number, since it uses less digits than its factorization.

7766669049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112560447.

The product of its (nonzero) digits is 20575296, while the sum is 60.

The square root of 7766669049 is about 88128.7072922325. The cubic root of 7766669049 is about 1980.3635907641.

The spelling of 7766669049 in words is "seven billion, seven hundred sixty-six million, six hundred sixty-nine thousand, forty-nine".