20614512487 has 2 divisors, whose sum is σ = 20614512488. Its totient is φ = 20614512486.

The previous prime is 20614512449. The next prime is 20614512491. The reversal of 20614512487 is 78421541602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20614512487 - 2¹¹ = 20614510439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20614512187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10307256243 + 10307256244.

It is an arithmetic number, because the mean of its divisors is an integer number (10307256244).

Almost surely, 2^20614512487 is an apocalyptic number.

20614512487 is a deficient number, since it is larger than the sum of its proper divisors (1).

20614512487 is an equidigital number, since it uses as much as digits as its factorization.

20614512487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 20614512487 in words is "twenty billion, six hundred fourteen million, five hundred twelve thousand, four hundred eighty-seven".