49631898190081 has 27 divisors (see below), whose sum is σ = 53634313900449. Its totient is φ = 45920885775912.

The previous prime is 49631898190079. The next prime is 49631898190111. The reversal of 49631898190081 is 18009189813694.

The square root of 49631898190081 is 7044991.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 49631898190081 - 2¹ = 49631898190079 is a prime.

It is a super-2 number, since 2×49631898190081² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49631898189989 and 49631898190016.

It is not an unprimeable number, because it can be changed into a prime (49631898197081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5755753336 + ... + 5755761958.

It is an arithmetic number, because the mean of its divisors is an integer number (1986456070387).

Almost surely, 2^{49631898190081} is an apocalyptic number.

49631898190081 is the 7044991-st square number.

49631898190081 is the 3522496-th centered octagonal number.

It is an amenable number.

49631898190081 is a deficient number, since it is larger than the sum of its proper divisors (4002415710368).

49631898190081 is an frugal number, since it uses more digits than its factorization.

49631898190081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17370 (or 8685 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 67.

The spelling of 49631898190081 in words is "forty-nine trillion, six hundred thirty-one billion, eight hundred ninety-eight million, one hundred ninety thousand, eighty-one".