20394014547 has 32 divisors (see below), whose sum is σ = 28281088000. Its totient is φ = 13058496000.

The previous prime is 20394014539. The next prime is 20394014551. The reversal of 20394014547 is 74541049302.

It is not a de Polignac number, because 20394014547 - 2³ = 20394014539 is a prime.

It is a super-3 number, since 3×20394014547³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20394014507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7417329 + ... + 7420077.

It is an arithmetic number, because the mean of its divisors is an integer number (883784000).

Almost surely, 2^20394014547 is an apocalyptic number.

20394014547 is a deficient number, since it is larger than the sum of its proper divisors (7887073453).

20394014547 is a wasteful number, since it uses less digits than its factorization.

20394014547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 20394014547 in words is "twenty billion, three hundred ninety-four million, fourteen thousand, five hundred forty-seven".