12158761048 has 64 divisors (see below), whose sum is σ = 27547142400. Its totient is φ = 4914794880.

The previous prime is 12158760931. The next prime is 12158761057. The reversal of 12158761048 is 84016785121.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12158760995 and 12158761013.

It is a congruent number.

It is an unprimeable number.

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, 216358 + ... + 266698.

It is an arithmetic number, because the mean of its divisors is an integer number (430424100).

Almost surely, 2^12158761048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12158761048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13773571200).

12158761048 is an abundant number, since it is smaller than the sum of its proper divisors (15388381352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12158761048 is a wasteful number, since it uses less digits than its factorization.

12158761048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50600 (or 50596 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 12158761048 in words is "twelve billion, one hundred fifty-eight million, seven hundred sixty-one thousand, forty-eight".