2612445556 has 72 divisors (see below), whose sum is σ = 5669233920. Its totient is φ = 1031188992.

The previous prime is 2612445529. The next prime is 2612445557. The reversal of 2612445556 is 6555442162.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2612445557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376890 + ... + 383758.

It is an arithmetic number, because the mean of its divisors is an integer number (78739360).

Almost surely, 2^2612445556 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 2612445556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2834616960).

2612445556 is an abundant number, since it is smaller than the sum of its proper divisors (3056788364).

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

2612445556 is a wasteful number, since it uses less digits than its factorization.

2612445556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6961 (or 6942 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The square root of 2612445556 is about 51112.0881592603. The cubic root of 2612445556 is about 1377.2594136062.

The spelling of 2612445556 in words is "two billion, six hundred twelve million, four hundred forty-five thousand, five hundred fifty-six".