49428881766 has 48 divisors (see below), whose sum is σ = 118144662480. Its totient is φ = 14810146560.

The previous prime is 49428881759. The next prime is 49428881773. The reversal of 49428881766 is 66718882494.

49428881766 is a `hidden beast` number, since 494 + 2 + 8 + 8 + 81 + 7 + 66 = 666.

It is an interprime number because it is at equal distance from previous prime (49428881759) and next prime (49428881773).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1384855 + ... + 1420098.

It is an arithmetic number, because the mean of its divisors is an integer number (2461347135).

Almost surely, 2^49428881766 is an apocalyptic number.

49428881766 is an abundant number, since it is smaller than the sum of its proper divisors (68715780714).

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

49428881766 is a wasteful number, since it uses less digits than its factorization.

49428881766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805061 (or 2805058 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 63.

The spelling of 49428881766 in words is "forty-nine billion, four hundred twenty-eight million, eight hundred eighty-one thousand, seven hundred sixty-six".