49355581800 has 384 divisors, whose sum is σ = 186416640000. Its totient is φ = 10550891520.

The previous prime is 49355581763. The next prime is 49355581813. The reversal of 49355581800 is 818555394.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 49355581800.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6300286 + ... + 6308114.

It is an arithmetic number, because the mean of its divisors is an integer number (485460000).

Almost surely, 2^49355581800 is an apocalyptic number.

49355581800 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 49355581800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93208320000).

49355581800 is an abundant number, since it is smaller than the sum of its proper divisors (137061058200).

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

49355581800 is a wasteful number, since it uses less digits than its factorization.

49355581800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7953 (or 7944 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 48.

The spelling of 49355581800 in words is "forty-nine billion, three hundred fifty-five million, five hundred eighty-one thousand, eight hundred".