20413767939 has 8 divisors (see below), whose sum is σ = 27882219792. Its totient is φ = 13277247360.

The previous prime is 20413767929. The next prime is 20413767971. The reversal of 20413767939 is 93976731402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20413767939 - 2¹³ = 20413759747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20413767891 and 20413767900.

It is not an unprimeable number, because it can be changed into a prime (20413767929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82982674 + ... + 82982919.

It is an arithmetic number, because the mean of its divisors is an integer number (3485277474).

Almost surely, 2^20413767939 is an apocalyptic number.

20413767939 is a deficient number, since it is larger than the sum of its proper divisors (7468451853).

20413767939 is a wasteful number, since it uses less digits than its factorization.

20413767939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165965637.

The product of its (nonzero) digits is 1714608, while the sum is 51.

The spelling of 20413767939 in words is "twenty billion, four hundred thirteen million, seven hundred sixty-seven thousand, nine hundred thirty-nine".