48293138987 has 4 divisors (see below), whose sum is σ = 48364473696. Its totient is φ = 48221804280.

The previous prime is 48293138969. The next prime is 48293139007. The reversal of 48293138987 is 78983139284.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48293138987 - 2⁶ = 48293138923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48293138947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35666339 + ... + 35667692.

It is an arithmetic number, because the mean of its divisors is an integer number (12091118424).

Almost surely, 2^48293138987 is an apocalyptic number.

48293138987 is a deficient number, since it is larger than the sum of its proper divisors (71334709).

48293138987 is an equidigital number, since it uses as much as digits as its factorization.

48293138987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71334708.

The product of its digits is 20901888, while the sum is 62.

Adding to 48293138987 its sum of digits (62), we get a square (48293139049 = 219757²).

The spelling of 48293138987 in words is "forty-eight billion, two hundred ninety-three million, one hundred thirty-eight thousand, nine hundred eighty-seven".