20476723470 has 64 divisors (see below), whose sum is σ = 56176243200. Its totient is φ = 4679434368.

The previous prime is 20476723459. The next prime is 20476723471. The reversal of 20476723470 is 7432767402.

20476723470 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20476723471) 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, 1767256 + ... + 1778804.

It is an arithmetic number, because the mean of its divisors is an integer number (877753800).

Almost surely, 2^20476723470 is an apocalyptic number.

20476723470 is an abundant number, since it is smaller than the sum of its proper divisors (35699519730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20476723470 is a wasteful number, since it uses less digits than its factorization.

20476723470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20009.

The product of its (nonzero) digits is 395136, while the sum is 42.

The spelling of 20476723470 in words is "twenty billion, four hundred seventy-six million, seven hundred twenty-three thousand, four hundred seventy".