20471623477053 has 16 divisors (see below), whose sum is σ = 33029846282880. Its totient is φ = 11009948760576.

The previous prime is 20471623477027. The next prime is 20471623477139. The reversal of 20471623477053 is 35077432617402.

It is not a de Polignac number, because 20471623477053 - 2⁵ = 20471623477021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 20471623476987 and 20471623477005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20471623476053) 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, 28671741208 + ... + 28671741921.

It is an arithmetic number, because the mean of its divisors is an integer number (2064365392680).

Almost surely, 2^{20471623477053} is an apocalyptic number.

It is an amenable number.

20471623477053 is a deficient number, since it is larger than the sum of its proper divisors (12558222805827).

20471623477053 is a wasteful number, since it uses less digits than its factorization.

20471623477053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57343483156.

The product of its (nonzero) digits is 5927040, while the sum is 51.

The spelling of 20471623477053 in words is "twenty trillion, four hundred seventy-one billion, six hundred twenty-three million, four hundred seventy-seven thousand, fifty-three".