20454330429 has 36 divisors (see below), whose sum is σ = 32736790944. Its totient is φ = 12294513504.

The previous prime is 20454330427. The next prime is 20454330461. The reversal of 20454330429 is 92403345402.

It is not a de Polignac number, because 20454330429 - 2¹ = 20454330427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20454330393 and 20454330402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20454330427) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 90969 + ... + 221774.

It is an arithmetic number, because the mean of its divisors is an integer number (909355304).

Almost surely, 2^20454330429 is an apocalyptic number.

It is an amenable number.

20454330429 is a deficient number, since it is larger than the sum of its proper divisors (12282460515).

20454330429 is a wasteful number, since it uses less digits than its factorization.

20454330429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312818 (or 312802 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 20454330429 in words is "twenty billion, four hundred fifty-four million, three hundred thirty thousand, four hundred twenty-nine".