20075000761 has 2 divisors, whose sum is σ = 20075000762. Its totient is φ = 20075000760.

The previous prime is 20075000713. The next prime is 20075000789. The reversal of 20075000761 is 16700057002.

It is an a-pointer prime, because the next prime (20075000789) can be obtained adding 20075000761 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16444215225 + 3630785536 = 128235^2 + 60256^2 .

It is a cyclic number.

It is not a de Polignac number, because 20075000761 - 2¹⁹ = 20074476473 is a prime.

It is not a weakly prime, because it can be changed into another prime (20075000711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10037500380 + 10037500381.

It is an arithmetic number, because the mean of its divisors is an integer number (10037500381).

Almost surely, 2^20075000761 is an apocalyptic number.

It is an amenable number.

20075000761 is a deficient number, since it is larger than the sum of its proper divisors (1).

20075000761 is an equidigital number, since it uses as much as digits as its factorization.

20075000761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

Adding to 20075000761 its reverse (16700057002), we get a palindrome (36775057763).

The spelling of 20075000761 in words is "twenty billion, seventy-five million, seven hundred sixty-one", and thus it is an aban number.