49789231165440 has 1040 divisors, whose sum is σ = 196902769605696. Its totient is φ = 11956676198400.

The previous prime is 49789231165379. The next prime is 49789231165451. The reversal of 49789231165440 is 4456113298794.

49789231165440 is a `hidden beast` number, since 4 + 9 + 7 + 8 + 9 + 23 + 1 + 165 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (1040).

It is a super-3 number, since 3×49789231165440³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 884154885 + ... + 884211195.

It is a 1-persistent number, because it is pandigital, but 2⋅49789231165440 = 99578462330880 is not.

Almost surely, 2^{49789231165440} is an apocalyptic number.

49789231165440 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 49789231165440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98451384802848).

49789231165440 is an abundant number, since it is smaller than the sum of its proper divisors (147113538440256).

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

49789231165440 is a wasteful number, since it uses less digits than its factorization.

49789231165440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56406 (or 56375 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 49789231165440 in words is "forty-nine trillion, seven hundred eighty-nine billion, two hundred thirty-one million, one hundred sixty-five thousand, four hundred forty".