47198455138 has 16 divisors (see below), whose sum is σ = 75865416480. Its totient is φ = 21943433536.

The previous prime is 47198455097. The next prime is 47198455159. The reversal of 47198455138 is 83155489174.

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, 8359768 + ... + 8365411.

It is an arithmetic number, because the mean of its divisors is an integer number (4741588530).

Almost surely, 2^47198455138 is an apocalyptic number.

47198455138 is a deficient number, since it is larger than the sum of its proper divisors (28666961342).

47198455138 is a wasteful number, since it uses less digits than its factorization.

47198455138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16725281.

The product of its digits is 4838400, while the sum is 55.

The spelling of 47198455138 in words is "forty-seven billion, one hundred ninety-eight million, four hundred fifty-five thousand, one hundred thirty-eight".