4921994929 has 2 divisors, whose sum is σ = 4921994930. Its totient is φ = 4921994928.

The previous prime is 4921994849. The next prime is 4921994933. The reversal of 4921994929 is 9294991294.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3772784929 + 1149210000 = 61423^2 + 33900^2 .

It is a cyclic number.

It is not a de Polignac number, because 4921994929 - 2²⁵ = 4888440497 is a prime.

It is a super-2 number, since 2×4921994929² = 48452068162203430082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4921994029) 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 as a sum of consecutive naturals, namely, 2460997464 + 2460997465.

It is an arithmetic number, because the mean of its divisors is an integer number (2460997465).

Almost surely, 2^4921994929 is an apocalyptic number.

It is an amenable number.

4921994929 is a deficient number, since it is larger than the sum of its proper divisors (1).

4921994929 is an equidigital number, since it uses as much as digits as its factorization.

4921994929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3779136, while the sum is 58.

The square root of 4921994929 is about 70156.9307267643. The cubic root of 4921994929 is about 1701.0368448840.

The spelling of 4921994929 in words is "four billion, nine hundred twenty-one million, nine hundred ninety-four thousand, nine hundred twenty-nine".