49640160000 has 360 divisors, whose sum is σ = 173812112320. Its totient is φ = 12538368000.

The previous prime is 49640159977. The next prime is 49640160007. The reversal of 49640160000 is 6104694.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 49640160000.

It is not an unprimeable number, because it can be changed into a prime (49640160007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9117279 + ... + 9122721.

Almost surely, 2^49640160000 is an apocalyptic number.

49640160000 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 49640160000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86906056160).

49640160000 is an abundant number, since it is smaller than the sum of its proper divisors (124171952320).

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

49640160000 is an equidigital number, since it uses as much as digits as its factorization.

49640160000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501 (or 5472 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 49640160000 its reverse (6104694), we get a palindrome (49646264694).

The spelling of 49640160000 in words is "forty-nine billion, six hundred forty million, one hundred sixty thousand".