49148643456 has 384 divisors, whose sum is σ = 161522222400. Its totient is φ = 14883264000.

The previous prime is 49148643391. The next prime is 49148643463. The reversal of 49148643456 is 65434684194.

49148643456 is a `hidden beast` number, since 4 + 9 + 148 + 6 + 43 + 456 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33871531 + ... + 33872981.

Almost surely, 2^49148643456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49148643456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80761111200).

49148643456 is an abundant number, since it is smaller than the sum of its proper divisors (112373578944).

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

49148643456 is an equidigital number, since it uses as much as digits as its factorization.

49148643456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508 (or 1467 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The spelling of 49148643456 in words is "forty-nine billion, one hundred forty-eight million, six hundred forty-three thousand, four hundred fifty-six".