49947349440 has 112 divisors (see below), whose sum is σ = 159016061952. Its totient is φ = 13282907136.

The previous prime is 49947349433. The next prime is 49947349453. The reversal of 49947349440 is 4494374994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281437 + ... + 423203.

Almost surely, 2^49947349440 is an apocalyptic number.

49947349440 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 49947349440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79508030976).

49947349440 is an abundant number, since it is smaller than the sum of its proper divisors (109068712512).

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

49947349440 is a wasteful number, since it uses less digits than its factorization.

49947349440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142154 (or 142144 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 49947349440 in words is "forty-nine billion, nine hundred forty-seven million, three hundred forty-nine thousand, four hundred forty".