4537251640 has 32 divisors (see below), whose sum is σ = 10446234480. Its totient is φ = 1772692992.

The previous prime is 4537251599. The next prime is 4537251659. The reversal of 4537251640 is 461527354.

It is a self number, because there is not a number n which added to its sum of digits gives 4537251640.

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 7 ways as a sum of consecutive naturals, for example, 1317249 + ... + 1320688.

Almost surely, 2^4537251640 is an apocalyptic number.

4537251640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4537251640 is an abundant number, since it is smaller than the sum of its proper divisors (5908982840).

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

4537251640 is a wasteful number, since it uses less digits than its factorization.

4537251640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637991 (or 2637987 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 4537251640 is about 67359.1244004849. The cubic root of 4537251640 is about 1655.5067484339.

Adding to 4537251640 its reverse (461527354), we get a palindrome (4998778994).

The spelling of 4537251640 in words is "four billion, five hundred thirty-seven million, two hundred fifty-one thousand, six hundred forty".