49123544140800 has 396 divisors, whose sum is σ = 181950570846720. Its totient is φ = 12647899299840.

The previous prime is 49123544140729. The next prime is 49123544140841. The reversal of 49123544140800 is 804144532194.

49123544140800 is a `hidden beast` number, since 4 + 9 + 1 + 23 + 544 + 1 + 4 + 0 + 80 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3005569 + ... + 10357631.

Almost surely, 2^{49123544140800} is an apocalyptic number.

49123544140800 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 49123544140800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90975285423360).

49123544140800 is an abundant number, since it is smaller than the sum of its proper divisors (132827026705920).

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

49123544140800 is a wasteful number, since it uses less digits than its factorization.

49123544140800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7352128 (or 7352102 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

Adding to 49123544140800 its reverse (804144532194), we get a palindrome (49927688672994).

The spelling of 49123544140800 in words is "forty-nine trillion, one hundred twenty-three billion, five hundred forty-four million, one hundred forty thousand, eight hundred".