49265773128 has 512 divisors, whose sum is σ = 173253427200. Its totient is φ = 12750566400.

The previous prime is 49265773121. The next prime is 49265773147. The reversal of 49265773128 is 82137756294.

It is a happy number.

49265773128 is a `hidden beast` number, since 49 + 2 + 6 + 577 + 3 + 1 + 28 = 666.

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 (49265773121) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 22022026 + ... + 22024262.

It is an arithmetic number, because the mean of its divisors is an integer number (338385600).

Almost surely, 2^49265773128 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 49265773128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86626713600).

49265773128 is an abundant number, since it is smaller than the sum of its proper divisors (123987654072).

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

49265773128 is a wasteful number, since it uses less digits than its factorization.

49265773128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330 (or 2320 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 49265773128 in words is "forty-nine billion, two hundred sixty-five million, seven hundred seventy-three thousand, one hundred twenty-eight".