7148666879 has 8 divisors (see below), whose sum is σ = 7250798592. Its totient is φ = 7046575480.

The previous prime is 7148666831. The next prime is 7148666927. The reversal of 7148666879 is 9786668417.

7148666879 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7148666831) and next prime (7148666927).

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

It is a cyclic number.

It is not a de Polignac number, because 7148666879 - 2¹² = 7148662783 is a prime.

It is a super-2 number, since 2×7148666879² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7148660879) 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, 678002 + ... + 688464.

It is an arithmetic number, because the mean of its divisors is an integer number (906349824).

Almost surely, 2^7148666879 is an apocalyptic number.

7148666879 is a deficient number, since it is larger than the sum of its proper divisors (102131713).

7148666879 is a wasteful number, since it uses less digits than its factorization.

7148666879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20157.

The product of its digits is 24385536, while the sum is 62.

The square root of 7148666879 is about 84549.7893492349. The cubic root of 7148666879 is about 1926.3787843110.

The spelling of 7148666879 in words is "seven billion, one hundred forty-eight million, six hundred sixty-six thousand, eight hundred seventy-nine".