20071759149 has 48 divisors (see below), whose sum is σ = 32912994240. Its totient is φ = 12017730240.

The previous prime is 20071759129. The next prime is 20071759151. The reversal of 20071759149 is 94195717002.

20071759149 is a `hidden beast` number, since 2 + 0 + 0 + 7 + 17 + 591 + 49 = 666.

It is not a de Polignac number, because 20071759149 - 2¹⁹ = 20071234861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20071759129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 459634 + ... + 501404.

It is an arithmetic number, because the mean of its divisors is an integer number (685687380).

Almost surely, 2^20071759149 is an apocalyptic number.

It is an amenable number.

20071759149 is a deficient number, since it is larger than the sum of its proper divisors (12841235091).

20071759149 is a wasteful number, since it uses less digits than its factorization.

20071759149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41867 (or 41824 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The spelling of 20071759149 in words is "twenty billion, seventy-one million, seven hundred fifty-nine thousand, one hundred forty-nine".