48999781558 has 32 divisors (see below), whose sum is σ = 92307297600. Its totient is φ = 19384525440.

The previous prime is 48999781553. The next prime is 48999781559. The reversal of 48999781558 is 85518799984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48999781553) 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, 2738323 + ... + 2756158.

It is an arithmetic number, because the mean of its divisors is an integer number (2884603050).

Almost surely, 2^48999781558 is an apocalyptic number.

48999781558 is a deficient number, since it is larger than the sum of its proper divisors (43307516042).

48999781558 is a wasteful number, since it uses less digits than its factorization.

48999781558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5494517 (or 5494503 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 73.

The spelling of 48999781558 in words is "forty-eight billion, nine hundred ninety-nine million, seven hundred eighty-one thousand, five hundred fifty-eight".