2597101920 has 288 divisors, whose sum is σ = 10574776800. Its totient is φ = 593574912.

The previous prime is 2597101861. The next prime is 2597101921. The reversal of 2597101920 is 291017952.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2597101921) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 205546 + ... + 217814.

It is an arithmetic number, because the mean of its divisors is an integer number (36717975).

Almost surely, 2^2597101920 is an apocalyptic number.

2597101920 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 2597101920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5287388400).

2597101920 is an abundant number, since it is smaller than the sum of its proper divisors (7977674880).

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

2597101920 is a wasteful number, since it uses less digits than its factorization.

2597101920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12307 (or 12286 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 2597101920 is about 50961.7692000582. The cubic root of 2597101920 is about 1374.5577720557.

The spelling of 2597101920 in words is "two billion, five hundred ninety-seven million, one hundred one thousand, nine hundred twenty".