7149658969 has 4 divisors (see below), whose sum is σ = 7149856896. Its totient is φ = 7149461044.

The previous prime is 7149658961. The next prime is 7149658981. The reversal of 7149658969 is 9698569417.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9698569417 = 66877 ⋅145021.

It is a cyclic number.

It is not a de Polignac number, because 7149658969 - 2³ = 7149658961 is a prime.

It is a super-2 number, since 2×7149658969² (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 7149658969.

It is not an unprimeable number, because it can be changed into a prime (7149658961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27649 + ... + 122734.

It is an arithmetic number, because the mean of its divisors is an integer number (1787464224).

Almost surely, 2^7149658969 is an apocalyptic number.

It is an amenable number.

7149658969 is a deficient number, since it is larger than the sum of its proper divisors (197927).

7149658969 is a wasteful number, since it uses less digits than its factorization.

7149658969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197926.

The product of its digits is 29393280, while the sum is 64.

The square root of 7149658969 is about 84555.6560438153. The cubic root of 7149658969 is about 1926.4678942928.

The spelling of 7149658969 in words is "seven billion, one hundred forty-nine million, six hundred fifty-eight thousand, nine hundred sixty-nine".