48999999997 has 12 divisors (see below), whose sum is σ = 56055899956. Its totient is φ = 42570132480.

The previous prime is 48999999989. The next prime is 49000000001. The reversal of 48999999997 is 79999999984.

It can be written as a sum of positive squares in 6 ways, for example, as 6467537241 + 42532462756 = 80421^2 + 206234^2 .

It is not a de Polignac number, because 48999999997 - 2³ = 48999999989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48999939997) 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 11 ways as a sum of consecutive naturals, for example, 6517404 + ... + 6524917.

Almost surely, 2^48999999997 is an apocalyptic number.

It is an amenable number.

48999999997 is a deficient number, since it is larger than the sum of its proper divisors (7055899959).

48999999997 is a wasteful number, since it uses less digits than its factorization.

48999999997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13042368 (or 13042351 counting only the distinct ones).

The product of its digits is 9642465504, while the sum is 91.

The spelling of 48999999997 in words is "forty-eight billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-seven".