214990847997 has 4 divisors (see below), whose sum is σ = 286654464000. Its totient is φ = 143327231996.

The previous prime is 214990847963. The next prime is 214990847999. The reversal of 214990847997 is 799748099412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214990847997 - 2²⁰ = 214989799421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214990847999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35831807997 + ... + 35831808002.

It is an arithmetic number, because the mean of its divisors is an integer number (71663616000).

Almost surely, 2^214990847997 is an apocalyptic number.

It is an amenable number.

214990847997 is a deficient number, since it is larger than the sum of its proper divisors (71663616003).

214990847997 is an equidigital number, since it uses as much as digits as its factorization.

214990847997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71663616002.

The product of its (nonzero) digits is 82301184, while the sum is 69.

The spelling of 214990847997 in words is "two hundred fourteen billion, nine hundred ninety million, eight hundred forty-seven thousand, nine hundred ninety-seven".