49128758280 has 1152 divisors, whose sum is σ = 208392912000. Its totient is φ = 10346434560.

The previous prime is 49128758279. The next prime is 49128758281. The reversal of 49128758280 is 8285782194.

49128758280 is a `hidden beast` number, since 49 + 12 + 8 + 7 + 582 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (49128758279) and next prime (49128758281).

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

It is not an unprimeable number, because it can be changed into a prime (49128758281) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 552008476 + ... + 552008564.

It is an arithmetic number, because the mean of its divisors is an integer number (180896625).

Almost surely, 2^49128758280 is an apocalyptic number.

49128758280 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 49128758280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104196456000).

49128758280 is an abundant number, since it is smaller than the sum of its proper divisors (159264153720).

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

49128758280 is a wasteful number, since it uses less digits than its factorization.

49128758280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 49128758280 in words is "forty-nine billion, one hundred twenty-eight million, seven hundred fifty-eight thousand, two hundred eighty".