49721889500749 has 32 divisors (see below), whose sum is σ = 54351627264000. Its totient is φ = 45312454296000.

The previous prime is 49721889500677. The next prime is 49721889500753. The reversal of 49721889500749 is 94700598812794.

It is a cyclic number.

It is not a de Polignac number, because 49721889500749 - 2¹³ = 49721889492557 is a prime.

It is a super-2 number, since 2×49721889500749² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (73) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49721889500449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69198174 + ... + 69913024.

It is an arithmetic number, because the mean of its divisors is an integer number (1698488352000).

Almost surely, 2^{49721889500749} is an apocalyptic number.

It is an amenable number.

49721889500749 is a deficient number, since it is larger than the sum of its proper divisors (4629737763251).

49721889500749 is a wasteful number, since it uses less digits than its factorization.

49721889500749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715609.

The product of its (nonzero) digits is 365783040, while the sum is 73.

The spelling of 49721889500749 in words is "forty-nine trillion, seven hundred twenty-one billion, eight hundred eighty-nine million, five hundred thousand, seven hundred forty-nine".