20004376431 has 16 divisors (see below), whose sum is σ = 29973113856. Its totient is φ = 11775150816.

The previous prime is 20004376429. The next prime is 20004376471. The reversal of 20004376431 is 13467340002.

It is not a de Polignac number, because 20004376431 - 2¹ = 20004376429 is a prime.

It is a super-2 number, since 2×20004376431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004376421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11149815 + ... + 11151608.

It is an arithmetic number, because the mean of its divisors is an integer number (1873319616).

Almost surely, 2^20004376431 is an apocalyptic number.

20004376431 is a deficient number, since it is larger than the sum of its proper divisors (9968737425).

20004376431 is a wasteful number, since it uses less digits than its factorization.

20004376431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22301462.

The product of its (nonzero) digits is 12096, while the sum is 30.

The spelling of 20004376431 in words is "twenty billion, four million, three hundred seventy-six thousand, four hundred thirty-one".