7425249979 has 8 divisors (see below), whose sum is σ = 8486534880. Its totient is φ = 6364098816.

The previous prime is 7425249977. The next prime is 7425250037. The reversal of 7425249979 is 9799425247.

7425249979 is nontrivially palindromic in base 2.

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 7425249979 - 2¹ = 7425249977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7425249971) 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, 160737 + ... + 201709.

It is an arithmetic number, because the mean of its divisors is an integer number (1060816860).

Almost surely, 2^7425249979 is an apocalyptic number.

7425249979 is a deficient number, since it is larger than the sum of its proper divisors (1061284901).

7425249979 is a wasteful number, since it uses less digits than its factorization.

7425249979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66869.

The product of its digits is 11430720, while the sum is 58.

The square root of 7425249979 is about 86169.8902111405. The cubic root of 7425249979 is about 1950.9090636711.

The spelling of 7425249979 in words is "seven billion, four hundred twenty-five million, two hundred forty-nine thousand, nine hundred seventy-nine".