2154063912 has 192 divisors, whose sum is σ = 7360113600. Its totient is φ = 516418560.

The previous prime is 2154063911. The next prime is 2154063913. The reversal of 2154063912 is 2193604512.

It is an interprime number because it is at equal distance from previous prime (2154063911) and next prime (2154063913).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2154063911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161764 + ... + 174572.

It is an arithmetic number, because the mean of its divisors is an integer number (38333925).

Almost surely, 2^2154063912 is an apocalyptic number.

2154063912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2154063912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3680056800).

2154063912 is an abundant number, since it is smaller than the sum of its proper divisors (5206049688).

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

2154063912 is a wasteful number, since it uses less digits than its factorization.

2154063912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12856 (or 12845 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2154063912 is about 46411.8940789966. The cubic root of 2154063912 is about 1291.4755689006.

The spelling of 2154063912 in words is "two billion, one hundred fifty-four million, sixty-three thousand, nine hundred twelve".