2151272396 has 96 divisors (see below), whose sum is σ = 4760448000. Its totient is φ = 828050688.

The previous prime is 2151272309. The next prime is 2151272399. The reversal of 2151272396 is 6932721512.

It is not an unprimeable number, because it can be changed into a prime (2151272399) 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, 2340425 + ... + 2341343.

It is an arithmetic number, because the mean of its divisors is an integer number (49588000).

Almost surely, 2^2151272396 is an apocalyptic number.

2151272396 is a gapful number since it is divisible by the number (26) 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 2151272396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2380224000).

2151272396 is an abundant number, since it is smaller than the sum of its proper divisors (2609175604).

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

2151272396 is a wasteful number, since it uses less digits than its factorization.

2151272396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111 (or 1109 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 2151272396 is about 46381.8110470042. The cubic root of 2151272396 is about 1290.9174404304.

The spelling of 2151272396 in words is "two billion, one hundred fifty-one million, two hundred seventy-two thousand, three hundred ninety-six".