2651109272 has 64 divisors (see below), whose sum is σ = 5865108480. Its totient is φ = 1099832832.

The previous prime is 2651109259. The next prime is 2651109281. The reversal of 2651109272 is 2729011562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267233 + ... + 276975.

It is an arithmetic number, because the mean of its divisors is an integer number (91642320).

Almost surely, 2^2651109272 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 2651109272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2932554240).

2651109272 is an abundant number, since it is smaller than the sum of its proper divisors (3213999208).

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

2651109272 is a wasteful number, since it uses less digits than its factorization.

2651109272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9912 (or 9908 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 2651109272 is about 51488.9237797801. The cubic root of 2651109272 is about 1384.0205636402.

The spelling of 2651109272 in words is "two billion, six hundred fifty-one million, one hundred nine thousand, two hundred seventy-two".