2691229632 has 448 divisors, whose sum is σ = 9443825664. Its totient is φ = 656916480.

The previous prime is 2691229603. The next prime is 2691229649. The reversal of 2691229632 is 2369221962.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14868582 + ... + 14868762.

It is an arithmetic number, because the mean of its divisors is an integer number (21079968).

Almost surely, 2^2691229632 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 2691229632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4721912832).

2691229632 is an abundant number, since it is smaller than the sum of its proper divisors (6752596032).

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

2691229632 is a wasteful number, since it uses less digits than its factorization.

2691229632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 266 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 2691229632 is about 51877.0626770637. The cubic root of 2691229632 is about 1390.9672945496.

The spelling of 2691229632 in words is "two billion, six hundred ninety-one million, two hundred twenty-nine thousand, six hundred thirty-two".