20131954476 has 24 divisors (see below), whose sum is σ = 47004019440. Its totient is φ = 6706443072.

The previous prime is 20131954463. The next prime is 20131954477. The reversal of 20131954476 is 67445913102.

It is not an unprimeable number, because it can be changed into a prime (20131954477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506091 + ... + 544418.

It is an arithmetic number, because the mean of its divisors is an integer number (1958500810).

Almost surely, 2^20131954476 is an apocalyptic number.

It is an amenable number.

20131954476 is an abundant number, since it is smaller than the sum of its proper divisors (26872064964).

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

20131954476 is a wasteful number, since it uses less digits than its factorization.

20131954476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052113 (or 1052111 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 20131954476 in words is "twenty billion, one hundred thirty-one million, nine hundred fifty-four thousand, four hundred seventy-six".