20760074987 has 2 divisors, whose sum is σ = 20760074988. Its totient is φ = 20760074986.

The previous prime is 20760074971. The next prime is 20760075019. The reversal of 20760074987 is 78947006702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20760074987 - 2⁴ = 20760074971 is a prime.

It is not a weakly prime, because it can be changed into another prime (20760074087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10380037493 + 10380037494.

It is an arithmetic number, because the mean of its divisors is an integer number (10380037494).

Almost surely, 2^20760074987 is an apocalyptic number.

20760074987 is a deficient number, since it is larger than the sum of its proper divisors (1).

20760074987 is an equidigital number, since it uses as much as digits as its factorization.

20760074987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 20760074987 in words is "twenty billion, seven hundred sixty million, seventy-four thousand, nine hundred eighty-seven".