20864191414 has 48 divisors (see below), whose sum is σ = 35044559424. Its totient is φ = 9307116720.

The previous prime is 20864191391. The next prime is 20864191451. The reversal of 20864191414 is 41419146802.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4586289 + ... + 4590835.

It is an arithmetic number, because the mean of its divisors is an integer number (730094988).

Almost surely, 2^20864191414 is an apocalyptic number.

20864191414 is a deficient number, since it is larger than the sum of its proper divisors (14180368010).

20864191414 is a wasteful number, since it uses less digits than its factorization.

20864191414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4921 (or 4910 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 20864191414 in words is "twenty billion, eight hundred sixty-four million, one hundred ninety-one thousand, four hundred fourteen".