2657488372 has 48 divisors (see below), whose sum is σ = 5810112000. Its totient is φ = 1033250400.

The previous prime is 2657488321. The next prime is 2657488373. The reversal of 2657488372 is 2738847562.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2657488373) 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 15 ways as a sum of consecutive naturals, for example, 145047 + ... + 162337.

It is an arithmetic number, because the mean of its divisors is an integer number (121044000).

Almost surely, 2^2657488372 is an apocalyptic number.

2657488372 is a gapful number since it is divisible by the number (22) 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 2657488372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2905056000).

2657488372 is an abundant number, since it is smaller than the sum of its proper divisors (3152623628).

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

2657488372 is a wasteful number, since it uses less digits than its factorization.

2657488372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17812 (or 17810 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 52.

The square root of 2657488372 is about 51550.8328933685. The cubic root of 2657488372 is about 1385.1297513842.

The spelling of 2657488372 in words is "two billion, six hundred fifty-seven million, four hundred eighty-eight thousand, three hundred seventy-two".