7408874857 has 4 divisors (see below), whose sum is σ = 7609114756. Its totient is φ = 7208634960.

The previous prime is 7408874833. The next prime is 7408874887. The reversal of 7408874857 is 7584788047.

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 2572924176 + 4835950681 = 50724^2 + 69541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7408874857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7408874827) 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, 100119894 + ... + 100119967.

It is an arithmetic number, because the mean of its divisors is an integer number (1902278689).

Almost surely, 2^7408874857 is an apocalyptic number.

It is an amenable number.

7408874857 is a deficient number, since it is larger than the sum of its proper divisors (200239899).

7408874857 is a wasteful number, since it uses less digits than its factorization.

7408874857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200239898.

The product of its (nonzero) digits is 14049280, while the sum is 58.

The square root of 7408874857 is about 86074.8212719608. The cubic root of 7408874857 is about 1949.4738757683.

The spelling of 7408874857 in words is "seven billion, four hundred eight million, eight hundred seventy-four thousand, eight hundred fifty-seven".