7057287986 has 16 divisors (see below), whose sum is σ = 12099690240. Its totient is φ = 3024181440.

The previous prime is 7057287967. The next prime is 7057288031. The reversal of 7057287986 is 6897827507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109466 + ... + 161546.

It is an arithmetic number, because the mean of its divisors is an integer number (756230640).

Almost surely, 2^7057287986 is an apocalyptic number.

7057287986 is a deficient number, since it is larger than the sum of its proper divisors (5042402254).

7057287986 is a wasteful number, since it uses less digits than its factorization.

7057287986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61769.

The product of its (nonzero) digits is 11854080, while the sum is 59.

The square root of 7057287986 is about 84007.6662335051. Note that the first 3 decimals coincide. The cubic root of 7057287986 is about 1918.1354861427.

The spelling of 7057287986 in words is "seven billion, fifty-seven million, two hundred eighty-seven thousand, nine hundred eighty-six".