7457450689 has 4 divisors (see below), whose sum is σ = 8031100756. Its totient is φ = 6883800624.

The previous prime is 7457450683. The next prime is 7457450743. The reversal of 7457450689 is 9860547547.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2559550464 + 4897900225 = 50592^2 + 69985^2 .

It is a cyclic number.

It is not a de Polignac number, because 7457450689 - 2¹⁹ = 7456926401 is a prime.

It is a super-2 number, since 2×7457450689² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7457450683) 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, 286825014 + ... + 286825039.

It is an arithmetic number, because the mean of its divisors is an integer number (2007775189).

Almost surely, 2^7457450689 is an apocalyptic number.

It is an amenable number.

7457450689 is a deficient number, since it is larger than the sum of its proper divisors (573650067).

7457450689 is a wasteful number, since it uses less digits than its factorization.

7457450689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573650066.

The product of its (nonzero) digits is 8467200, while the sum is 55.

The square root of 7457450689 is about 86356.5324049084. The cubic root of 7457450689 is about 1953.7251333849.

The spelling of 7457450689 in words is "seven billion, four hundred fifty-seven million, four hundred fifty thousand, six hundred eighty-nine".