47919953081 has 32 divisors (see below), whose sum is σ = 64977244416. Its totient is φ = 34126560000.

The previous prime is 47919953057. The next prime is 47919953087. The reversal of 47919953081 is 18035991974.

It is not a de Polignac number, because 47919953081 - 2²⁶ = 47852844217 is a prime.

It is a super-2 number, since 2×47919953081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47919953087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135890 + ... + 338091.

It is an arithmetic number, because the mean of its divisors is an integer number (2030538888).

Almost surely, 2^47919953081 is an apocalyptic number.

It is an amenable number.

47919953081 is a deficient number, since it is larger than the sum of its proper divisors (17057291335).

47919953081 is a wasteful number, since it uses less digits than its factorization.

47919953081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474113.

The product of its (nonzero) digits is 2449440, while the sum is 56.

The spelling of 47919953081 in words is "forty-seven billion, nine hundred nineteen million, nine hundred fifty-three thousand, eighty-one".