20215194007 has 8 divisors (see below), whose sum is σ = 20485663200. Its totient is φ = 19946522400.

The previous prime is 20215193989. The next prime is 20215194019. The reversal of 20215194007 is 70049151202.

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

It is a cyclic number.

It is not a de Polignac number, because 20215194007 - 2¹¹ = 20215191959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20215194007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20215194067) 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 7 ways as a sum of consecutive naturals, for example, 426748 + ... + 471745.

It is an arithmetic number, because the mean of its divisors is an integer number (2560707900).

Almost surely, 2^20215194007 is an apocalyptic number.

20215194007 is a deficient number, since it is larger than the sum of its proper divisors (270469193).

20215194007 is a wasteful number, since it uses less digits than its factorization.

20215194007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898793.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 20215194007 in words is "twenty billion, two hundred fifteen million, one hundred ninety-four thousand, seven".