7655766513 has 8 divisors (see below), whose sum is σ = 10210620000. Its totient is φ = 5102378688.

The previous prime is 7655766497. The next prime is 7655766551. The reversal of 7655766513 is 3156675567.

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 7655766513 - 2⁴ = 7655766497 is a prime.

It is a super-2 number, since 2×7655766513² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7655766563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354168 + ... + 375161.

It is an arithmetic number, because the mean of its divisors is an integer number (1276327500).

Almost surely, 2^7655766513 is an apocalyptic number.

It is an amenable number.

7655766513 is a deficient number, since it is larger than the sum of its proper divisors (2554853487).

7655766513 is a wasteful number, since it uses less digits than its factorization.

7655766513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732831.

The product of its digits is 3969000, while the sum is 51.

The square root of 7655766513 is about 87497.2371735245. The cubic root of 7655766513 is about 1970.8923021918.

The spelling of 7655766513 in words is "seven billion, six hundred fifty-five million, seven hundred sixty-six thousand, five hundred thirteen".