2772148158 has 64 divisors (see below), whose sum is σ = 6746745600. Its totient is φ = 838499040.

The previous prime is 2772148153. The next prime is 2772148259. The reversal of 2772148158 is 8518412772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772148153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7953 + ... + 74883.

It is an arithmetic number, because the mean of its divisors is an integer number (105417900).

Almost surely, 2^2772148158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2772148158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3373372800).

2772148158 is an abundant number, since it is smaller than the sum of its proper divisors (3974597442).

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

2772148158 is a wasteful number, since it uses less digits than its factorization.

2772148158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67014 (or 67008 counting only the distinct ones).

The product of its digits is 250880, while the sum is 45.

The square root of 2772148158 is about 52651.1933198100. The cubic root of 2772148158 is about 1404.7708255360.

The spelling of 2772148158 in words is "two billion, seven hundred seventy-two million, one hundred forty-eight thousand, one hundred fifty-eight".