20514526487 has 8 divisors (see below), whose sum is σ = 25248648096. Its totient is φ = 16231273632.

The previous prime is 20514526481. The next prime is 20514526507. The reversal of 20514526487 is 78462541502.

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

It is not a de Polignac number, because 20514526487 - 2⁴ = 20514526471 is a prime.

It is a super-2 number, since 2×20514526487² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514526481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112717088 + ... + 112717269.

It is an arithmetic number, because the mean of its divisors is an integer number (3156081012).

Almost surely, 2^20514526487 is an apocalyptic number.

20514526487 is a deficient number, since it is larger than the sum of its proper divisors (4734121609).

20514526487 is a wasteful number, since it uses less digits than its factorization.

20514526487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225434377.

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 20514526487 in words is "twenty billion, five hundred fourteen million, five hundred twenty-six thousand, four hundred eighty-seven".