20610001487 has 2 divisors, whose sum is σ = 20610001488. Its totient is φ = 20610001486.

The previous prime is 20610001457. The next prime is 20610001513. The reversal of 20610001487 is 78410001602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20610001487 - 2⁸ = 20610001231 is a prime.

It is a super-2 number, since 2×20610001487² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20610001417) 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, 10305000743 + 10305000744.

It is an arithmetic number, because the mean of its divisors is an integer number (10305000744).

Almost surely, 2^20610001487 is an apocalyptic number.

20610001487 is a deficient number, since it is larger than the sum of its proper divisors (1).

20610001487 is an equidigital number, since it uses as much as digits as its factorization.

20610001487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 20610001487 in words is "twenty billion, six hundred ten million, one thousand, four hundred eighty-seven".