47945559489 has 16 divisors (see below), whose sum is σ = 68126164992. Its totient is φ = 29923467728.

The previous prime is 47945559479. The next prime is 47945559491. The reversal of 47945559489 is 98495554974.

47945559489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47945559489 - 2⁹ = 47945558977 is a prime.

It is a super-2 number, since 2×47945559489² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is not an unprimeable number, because it can be changed into a prime (47945559479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7388919 + ... + 7395404.

It is an arithmetic number, because the mean of its divisors is an integer number (4257885312).

Almost surely, 2^47945559489 is an apocalyptic number.

It is an amenable number.

47945559489 is a deficient number, since it is larger than the sum of its proper divisors (20180605503).

47945559489 is a wasteful number, since it uses less digits than its factorization.

47945559489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14784396.

The product of its digits is 326592000, while the sum is 69.

The spelling of 47945559489 in words is "forty-seven billion, nine hundred forty-five million, five hundred fifty-nine thousand, four hundred eighty-nine".