7142294879 has 4 divisors (see below), whose sum is σ = 7372691520. Its totient is φ = 6911898240.

The previous prime is 7142294867. The next prime is 7142294897. The reversal of 7142294879 is 9784922417.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9784922417 = 58321 ⋅167777.

It is a cyclic number.

It is not a de Polignac number, because 7142294879 - 2¹⁶ = 7142229343 is a prime.

It is a super-2 number, since 2×7142294879² (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 7142294879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7142294279) 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, 115198274 + ... + 115198335.

It is an arithmetic number, because the mean of its divisors is an integer number (1843172880).

Almost surely, 2^7142294879 is an apocalyptic number.

7142294879 is a deficient number, since it is larger than the sum of its proper divisors (230396641).

7142294879 is a wasteful number, since it uses less digits than its factorization.

7142294879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230396640.

The product of its digits is 2032128, while the sum is 53.

The square root of 7142294879 is about 84512.0990095501. The cubic root of 7142294879 is about 1925.8062517105.

The spelling of 7142294879 in words is "seven billion, one hundred forty-two million, two hundred ninety-four thousand, eight hundred seventy-nine".