16025913634487 has 4 divisors (see below), whose sum is σ = 16031480123520. Its totient is φ = 16020347145456.

The previous prime is 16025913634421. The next prime is 16025913634499. The reversal of 16025913634487 is 78443631952061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16025913634487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16025913639487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2783240198 + ... + 2783245955.

It is an arithmetic number, because the mean of its divisors is an integer number (4007870030880).

It is a 2-persistent number, because it is pandigital, and so is 2⋅16025913634487 = 32051827268974, but 3⋅16025913634487 = 48077740903461 is not.

Almost surely, 2^{16025913634487} is an apocalyptic number.

16025913634487 is a deficient number, since it is larger than the sum of its proper divisors (5566489033).

16025913634487 is an equidigital number, since it uses as much as digits as its factorization.

16025913634487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566489032.

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 16025913634487 in words is "sixteen trillion, twenty-five billion, nine hundred thirteen million, six hundred thirty-four thousand, four hundred eighty-seven".