20125702607539 has 8 divisors (see below), whose sum is σ = 21398728841280. Its totient is φ = 18862583193216.

The previous prime is 20125702607537. The next prime is 20125702607551. The reversal of 20125702607539 is 93570620752102.

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

It is not a de Polignac number, because 20125702607539 - 2¹ = 20125702607537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20125702607492 and 20125702607501.

It is not an unprimeable number, because it can be changed into a prime (20125702607533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2476700664 + ... + 2476708789.

It is an arithmetic number, because the mean of its divisors is an integer number (2674841105160).

Almost surely, 2^{20125702607539} is an apocalyptic number.

20125702607539 is a deficient number, since it is larger than the sum of its proper divisors (1273026233741).

20125702607539 is a wasteful number, since it uses less digits than its factorization.

20125702607539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953409709.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 20125702607539 in words is "twenty trillion, one hundred twenty-five billion, seven hundred two million, six hundred seven thousand, five hundred thirty-nine".