20045877471 has 24 divisors (see below), whose sum is σ = 31371397200. Its totient is φ = 12285294336.

The previous prime is 20045877469. The next prime is 20045877473. The reversal of 20045877471 is 17477854002.

20045877471 is a `hidden beast` number, since 20 + 0 + 4 + 587 + 7 + 47 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (20045877469) and next prime (20045877473).

It is not a de Polignac number, because 20045877471 - 2¹ = 20045877469 is a prime.

It is a super-3 number, since 3×20045877471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045877473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1516896 + ... + 1530053.

It is an arithmetic number, because the mean of its divisors is an integer number (1307141550).

Almost surely, 2^20045877471 is an apocalyptic number.

20045877471 is a deficient number, since it is larger than the sum of its proper divisors (11325519729).

20045877471 is a wasteful number, since it uses less digits than its factorization.

20045877471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047015 (or 3047012 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The spelling of 20045877471 in words is "twenty billion, forty-five million, eight hundred seventy-seven thousand, four hundred seventy-one".