2625973728 has 48 divisors (see below), whose sum is σ = 7877923200. Its totient is φ = 750278016.

The previous prime is 2625973723. The next prime is 2625973729. The reversal of 2625973728 is 8273795262.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625973723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953178 + ... + 1954521.

It is an arithmetic number, because the mean of its divisors is an integer number (164123400).

Almost surely, 2^2625973728 is an apocalyptic number.

2625973728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2625973728 is an abundant number, since it is smaller than the sum of its proper divisors (5251949472).

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

2625973728 is a wasteful number, since it uses less digits than its factorization.

2625973728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907719 (or 3907711 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The square root of 2625973728 is about 51244.2555609895. The cubic root of 2625973728 is about 1379.6326348328.

The spelling of 2625973728 in words is "two billion, six hundred twenty-five million, nine hundred seventy-three thousand, seven hundred twenty-eight".