4537172640 has 1152 divisors, whose sum is σ = 20849633280. Its totient is φ = 812851200.

The previous prime is 4537172623. The next prime is 4537172669. The reversal of 4537172640 is 462717354.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 63903805 + ... + 63903875.

It is an arithmetic number, because the mean of its divisors is an integer number (18098640).

Almost surely, 2^4537172640 is an apocalyptic number.

4537172640 is a gapful number since it is divisible by the number (40) 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 4537172640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10424816640).

4537172640 is an abundant number, since it is smaller than the sum of its proper divisors (16312460640).

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

4537172640 is a wasteful number, since it uses less digits than its factorization.

4537172640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 4537172640 is about 67358.5379888845. The cubic root of 4537172640 is about 1655.4971401363.

Adding to 4537172640 its reverse (462717354), we get a palindrome (4999889994).

The spelling of 4537172640 in words is "four billion, five hundred thirty-seven million, one hundred seventy-two thousand, six hundred forty".