7091986938 has 16 divisors (see below), whose sum is σ = 14378275776. Its totient is φ = 2331612000.

The previous prime is 7091986927. The next prime is 7091986961. The reversal of 7091986938 is 8396891907.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8095438 + ... + 8096313.

It is an arithmetic number, because the mean of its divisors is an integer number (898642236).

Almost surely, 2^7091986938 is an apocalyptic number.

7091986938 is an abundant number, since it is smaller than the sum of its proper divisors (7286288838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7091986938 is a wasteful number, since it uses less digits than its factorization.

7091986938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16191829.

The product of its (nonzero) digits is 5878656, while the sum is 60.

The square root of 7091986938 is about 84213.9355332596. The cubic root of 7091986938 is about 1921.2740150096.

The spelling of 7091986938 in words is "seven billion, ninety-one million, nine hundred eighty-six thousand, nine hundred thirty-eight".