247015498989 has 16 divisors (see below), whose sum is σ = 376438886912. Its totient is φ = 141138844848.

The previous prime is 247015498987. The next prime is 247015498991. The reversal of 247015498989 is 989894510742.

247015498989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (247015498987) and next prime (247015498991).

It is not a de Polignac number, because 247015498989 - 2¹ = 247015498987 is a prime.

It is a super-2 number, since 2×247015498989² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247015498981) 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 in 15 ways as a sum of consecutive naturals, for example, 297919 + ... + 763404.

It is an arithmetic number, because the mean of its divisors is an integer number (23527430432).

Almost surely, 2^247015498989 is an apocalyptic number.

It is an amenable number.

247015498989 is a deficient number, since it is larger than the sum of its proper divisors (129423387923).

247015498989 is a wasteful number, since it uses less digits than its factorization.

247015498989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072416.

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 247015498989 in words is "two hundred forty-seven billion, fifteen million, four hundred ninety-eight thousand, nine hundred eighty-nine".