7425742087 has 4 divisors (see below), whose sum is σ = 7426258200. Its totient is φ = 7425225976.

The previous prime is 7425742081. The next prime is 7425742133. The reversal of 7425742087 is 7802475247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7425742087 - 2⁷ = 7425741959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7425742081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235837 + ... + 265462.

It is an arithmetic number, because the mean of its divisors is an integer number (1856564550).

Almost surely, 2^7425742087 is an apocalyptic number.

7425742087 is a deficient number, since it is larger than the sum of its proper divisors (516113).

7425742087 is a wasteful number, since it uses less digits than its factorization.

7425742087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516112.

The product of its (nonzero) digits is 878080, while the sum is 46.

The square root of 7425742087 is about 86172.7456160009. The cubic root of 7425742087 is about 1950.9521615130.

The spelling of 7425742087 in words is "seven billion, four hundred twenty-five million, seven hundred forty-two thousand, eighty-seven".