9920877179 has 2 divisors, whose sum is σ = 9920877180. Its totient is φ = 9920877178.

The previous prime is 9920877167. The next prime is 9920877223. The reversal of 9920877179 is 9717780299.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9920877179 - 2¹⁶ = 9920811643 is a prime.

It is not a weakly prime, because it can be changed into another prime (9920877079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4960438589 + 4960438590.

It is an arithmetic number, because the mean of its divisors is an integer number (4960438590).

Almost surely, 2^9920877179 is an apocalyptic number.

9920877179 is a deficient number, since it is larger than the sum of its proper divisors (1).

9920877179 is an equidigital number, since it uses as much as digits as its factorization.

9920877179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000752, while the sum is 59.

The square root of 9920877179 is about 99603.6002311161. The cubic root of 9920877179 is about 2148.7374724982.

The spelling of 9920877179 in words is "nine billion, nine hundred twenty million, eight hundred seventy-seven thousand, one hundred seventy-nine".