4747991086 has 4 divisors (see below), whose sum is σ = 7121986632. Its totient is φ = 2373995542.

The previous prime is 4747991077. The next prime is 4747991107. The reversal of 4747991086 is 6801997474.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1186997770 + ... + 1186997773.

It is an arithmetic number, because the mean of its divisors is an integer number (1780496658).

Almost surely, 2^4747991086 is an apocalyptic number.

4747991086 is a deficient number, since it is larger than the sum of its proper divisors (2373995546).

4747991086 is a wasteful number, since it uses less digits than its factorization.

4747991086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373995545.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 4747991086 is about 68905.6680252068. The cubic root of 4747991086 is about 1680.7506903528.

The spelling of 4747991086 in words is "four billion, seven hundred forty-seven million, nine hundred ninety-one thousand, eighty-six".