20504967395 has 8 divisors (see below), whose sum is σ = 26842866480. Its totient is φ = 14912703520.

The previous prime is 20504967377. The next prime is 20504967407. The reversal of 20504967395 is 59376940502.

It is a happy number.

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

It is not a de Polignac number, because 20504967395 - 2¹⁴ = 20504951011 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186408740 + ... + 186408849.

It is an arithmetic number, because the mean of its divisors is an integer number (3355358310).

Almost surely, 2^20504967395 is an apocalyptic number.

20504967395 is a deficient number, since it is larger than the sum of its proper divisors (6337899085).

20504967395 is a wasteful number, since it uses less digits than its factorization.

20504967395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372817605.

The product of its (nonzero) digits is 2041200, while the sum is 50.

The spelling of 20504967395 in words is "twenty billion, five hundred four million, nine hundred sixty-seven thousand, three hundred ninety-five".