20134037765 has 8 divisors (see below), whose sum is σ = 24616710648. Its totient is φ = 15803320000.

The previous prime is 20134037747. The next prime is 20134037767. The reversal of 20134037765 is 56773043102.

It can be written as a sum of positive squares in 4 ways, for example, as 5283690721 + 14850347044 = 72689^2 + 121862^2 .

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

It is not a de Polignac number, because 20134037765 - 2¹⁴ = 20134021381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134037767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37988486 + ... + 37989015.

It is an arithmetic number, because the mean of its divisors is an integer number (3077088831).

Almost surely, 2^20134037765 is an apocalyptic number.

It is an amenable number.

20134037765 is a deficient number, since it is larger than the sum of its proper divisors (4482672883).

20134037765 is an equidigital number, since it uses as much as digits as its factorization.

20134037765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75977559.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 20134037765 in words is "twenty billion, one hundred thirty-four million, thirty-seven thousand, seven hundred sixty-five".