2179049030947 has 2 divisors, whose sum is σ = 2179049030948. Its totient is φ = 2179049030946.

The previous prime is 2179049030911. The next prime is 2179049031053. The reversal of 2179049030947 is 7490309409712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2179049030947 - 2¹⁹ = 2179048506659 is a prime.

It is not a weakly prime, because it can be changed into another prime (2179049030047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1089524515473 + 1089524515474.

It is an arithmetic number, because the mean of its divisors is an integer number (1089524515474).

Almost surely, 2^{2179049030947} is an apocalyptic number.

2179049030947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2179049030947 is an equidigital number, since it uses as much as digits as its factorization.

2179049030947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 2179049030947 in words is "two trillion, one hundred seventy-nine billion, forty-nine million, thirty thousand, nine hundred forty-seven".