2615122000 has 80 divisors (see below), whose sum is σ = 6656270400. Its totient is φ = 990979200.

The previous prime is 2615121989. The next prime is 2615122021. The reversal of 2615122000 is 2215162.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3591 + ... + 72409.

It is an arithmetic number, because the mean of its divisors is an integer number (83203380).

Almost surely, 2^2615122000 is an apocalyptic number.

2615122000 is a gapful number since it is divisible by the number (20) 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 2615122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3328135200).

2615122000 is an abundant number, since it is smaller than the sum of its proper divisors (4041148400).

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

2615122000 is a wasteful number, since it uses less digits than its factorization.

2615122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68861 (or 68845 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2615122000 is about 51138.2635606646. The cubic root of 2615122000 is about 1377.7295860316.

Adding to 2615122000 its reverse (2215162), we get a palindrome (2617337162).

The spelling of 2615122000 in words is "two billion, six hundred fifteen million, one hundred twenty-two thousand".