20453427724 has 24 divisors (see below), whose sum is σ = 37974056960. Its totient is φ = 9612174096.

The previous prime is 20453427707. The next prime is 20453427727. The reversal of 20453427724 is 42772435402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20453427727) 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, 1049892 + ... + 1069195.

Almost surely, 2^20453427724 is an apocalyptic number.

It is an amenable number.

20453427724 is a deficient number, since it is larger than the sum of its proper divisors (17520629236).

20453427724 is a wasteful number, since it uses less digits than its factorization.

20453427724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119237 (or 2119235 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 40.

The spelling of 20453427724 in words is "twenty billion, four hundred fifty-three million, four hundred twenty-seven thousand, seven hundred twenty-four".