2544971628 has 18 divisors (see below), whose sum is σ = 5938674924. Its totient is φ = 848265624.

The previous prime is 2544971623. The next prime is 2544971699. The reversal of 2544971628 is 8261794452.

It is not an unprimeable number, because it can be changed into a prime (2544971623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167475 + ... + 182037.

Almost surely, 2^2544971628 is an apocalyptic number.

It is an amenable number.

2544971628 is an abundant number, since it is smaller than the sum of its proper divisors (3393703296).

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

2544971628 is an frugal number, since it uses more digits than its factorization.

2544971628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29133 (or 14568 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 2544971628 is about 50447.7118212511. The cubic root of 2544971628 is about 1365.2986108903.

Multiplying 2544971628 by its sum of digits (48), we get a square (122158638144 = 349512²).

The spelling of 2544971628 in words is "two billion, five hundred forty-four million, nine hundred seventy-one thousand, six hundred twenty-eight".