7125455969 has 8 divisors (see below), whose sum is σ = 7371521640. Its totient is φ = 6882832000.

The previous prime is 7125455951. The next prime is 7125455971. The reversal of 7125455969 is 9695545217.

It can be written as a sum of positive squares in 4 ways, for example, as 352988944 + 6772467025 = 18788^2 + 82295^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7125455969 is a prime.

It is a super-2 number, since 2×7125455969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7125455969.

It is not an unprimeable number, because it can be changed into a prime (7125455929) 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, 856214 + ... + 864495.

It is an arithmetic number, because the mean of its divisors is an integer number (921440205).

Almost surely, 2^7125455969 is an apocalyptic number.

It is an amenable number.

7125455969 is a deficient number, since it is larger than the sum of its proper divisors (246065671).

7125455969 is a wasteful number, since it uses less digits than its factorization.

7125455969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720851.

The product of its digits is 3402000, while the sum is 53.

The square root of 7125455969 is about 84412.4159647146. The cubic root of 7125455969 is about 1924.2916126508.

The spelling of 7125455969 in words is "seven billion, one hundred twenty-five million, four hundred fifty-five thousand, nine hundred sixty-nine".