20372924149 has 8 divisors (see below), whose sum is σ = 21061295640. Its totient is φ = 19693670400.

The previous prime is 20372924123. The next prime is 20372924161. The reversal of 20372924149 is 94142927302.

It can be written as a sum of positive squares in 4 ways, for example, as 3921013924 + 16451910225 = 62618^2 + 128265^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20372924149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20372924189) 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 7 ways as a sum of consecutive naturals, for example, 2274892 + ... + 2283829.

It is an arithmetic number, because the mean of its divisors is an integer number (2632661955).

Almost surely, 2^20372924149 is an apocalyptic number.

It is an amenable number.

20372924149 is a deficient number, since it is larger than the sum of its proper divisors (688371491).

20372924149 is a wasteful number, since it uses less digits than its factorization.

20372924149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558871.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 20372924149 in words is "twenty billion, three hundred seventy-two million, nine hundred twenty-four thousand, one hundred forty-nine".