20477032494 has 16 divisors (see below), whose sum is σ = 41906485632. Its totient is φ = 6666940728.

The previous prime is 20477032493. The next prime is 20477032529. The reversal of 20477032494 is 49423077402.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20477032493) 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, 39683914 + ... + 39684429.

It is an arithmetic number, because the mean of its divisors is an integer number (2619155352).

Almost surely, 2^20477032494 is an apocalyptic number.

20477032494 is an abundant number, since it is smaller than the sum of its proper divisors (21429453138).

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

20477032494 is a wasteful number, since it uses less digits than its factorization.

20477032494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79368391.

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 20477032494 in words is "twenty billion, four hundred seventy-seven million, thirty-two thousand, four hundred ninety-four".