7699907121 has 16 divisors (see below), whose sum is σ = 10943424000. Its totient is φ = 4798884608.

The previous prime is 7699907119. The next prime is 7699907153. The reversal of 7699907121 is 1217099967.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7699907121 - 2¹ = 7699907119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (7699907191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499041 + ... + 514238.

It is an arithmetic number, because the mean of its divisors is an integer number (683964000).

Almost surely, 2^7699907121 is an apocalyptic number.

It is an amenable number.

7699907121 is a deficient number, since it is larger than the sum of its proper divisors (3243516879).

7699907121 is a wasteful number, since it uses less digits than its factorization.

7699907121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013448.

The product of its (nonzero) digits is 428652, while the sum is 51.

The square root of 7699907121 is about 87749.1146451062. The cubic root of 7699907121 is about 1974.6728825103.

The spelling of 7699907121 in words is "seven billion, six hundred ninety-nine million, nine hundred seven thousand, one hundred twenty-one".