4999526989 has 2 divisors, whose sum is σ = 4999526990. Its totient is φ = 4999526988.

The previous prime is 4999526963. The next prime is 4999527011. The reversal of 4999526989 is 9896259994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4224350025 + 775176964 = 64995^2 + 27842^2 .

It is a cyclic number.

It is not a de Polignac number, because 4999526989 - 2¹⁵ = 4999494221 is a prime.

It is a super-2 number, since 2×4999526989² = 49990540227478812242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4999526089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2499763494 + 2499763495.

It is an arithmetic number, because the mean of its divisors is an integer number (2499763495).

Almost surely, 2^4999526989 is an apocalyptic number.

It is an amenable number.

4999526989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4999526989 is an equidigital number, since it uses as much as digits as its factorization.

4999526989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113374080, while the sum is 70.

The square root of 4999526989 is about 70707.3333466904. Note that the first 4 decimals coincide. The cubic root of 4999526989 is about 1709.9220224807.

The spelling of 4999526989 in words is "four billion, nine hundred ninety-nine million, five hundred twenty-six thousand, nine hundred eighty-nine".