47980918989 has 12 divisors (see below), whose sum is σ = 69307676256. Its totient is φ = 31986400392.

The previous prime is 47980918987. The next prime is 47980918991. The reversal of 47980918989 is 98981908974.

It is an interprime number because it is at equal distance from previous prime (47980918987) and next prime (47980918991).

It is not a de Polignac number, because 47980918989 - 2¹ = 47980918987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47980918981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 567502 + ... + 646544.

It is an arithmetic number, because the mean of its divisors is an integer number (5775639688).

Almost surely, 2^47980918989 is an apocalyptic number.

It is an amenable number.

47980918989 is a deficient number, since it is larger than the sum of its proper divisors (21326757267).

47980918989 is a wasteful number, since it uses less digits than its factorization.

47980918989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146496 (or 146493 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 72.

The spelling of 47980918989 in words is "forty-seven billion, nine hundred eighty million, nine hundred eighteen thousand, nine hundred eighty-nine".