7426426057 has 8 divisors (see below), whose sum is σ = 7529469696. Its totient is φ = 7324005552.

The previous prime is 7426426043. The next prime is 7426426067. The reversal of 7426426057 is 7506246247.

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 7426426057 - 2¹¹ = 7426424009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7426426027) 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, 131758 + ... + 179479.

It is an arithmetic number, because the mean of its divisors is an integer number (941183712).

Almost surely, 2^7426426057 is an apocalyptic number.

It is an amenable number.

7426426057 is a deficient number, since it is larger than the sum of its proper divisors (103043639).

7426426057 is a wasteful number, since it uses less digits than its factorization.

7426426057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311567.

The product of its (nonzero) digits is 564480, while the sum is 43.

The square root of 7426426057 is about 86176.7141227838. The cubic root of 7426426057 is about 1951.0120590858.

The spelling of 7426426057 in words is "seven billion, four hundred twenty-six million, four hundred twenty-six thousand, fifty-seven".