20152613761237 has 2 divisors, whose sum is σ = 20152613761238. Its totient is φ = 20152613761236.

The previous prime is 20152613761177. The next prime is 20152613761277. The reversal of 20152613761237 is 73216731625102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19508881936996 + 643731824241 = 4416886^2 + 802329^2 .

It is a cyclic number.

It is not a de Polignac number, because 20152613761237 - 2²⁷ = 20152479543509 is a prime.

It is a super-2 number, since 2×20152613761237² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20152613761277) 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 as a sum of consecutive naturals, namely, 10076306880618 + 10076306880619.

It is an arithmetic number, because the mean of its divisors is an integer number (10076306880619).

Almost surely, 2^{20152613761237} is an apocalyptic number.

It is an amenable number.

20152613761237 is a deficient number, since it is larger than the sum of its proper divisors (1).

20152613761237 is an equidigital number, since it uses as much as digits as its factorization.

20152613761237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 20152613761237 in words is "twenty trillion, one hundred fifty-two billion, six hundred thirteen million, seven hundred sixty-one thousand, two hundred thirty-seven".