20125704177493 has 8 divisors (see below), whose sum is σ = 20614061109600. Its totient is φ = 19642255355568.

The previous prime is 20125704177487. The next prime is 20125704177571. The reversal of 20125704177493 is 39477140752102.

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

It is a cyclic number.

It is not a de Polignac number, because 20125704177493 - 2⁵ = 20125704177461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20125704177493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125704177463) 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, 1227019246 + ... + 1227035647.

It is an arithmetic number, because the mean of its divisors is an integer number (2576757638700).

Almost surely, 2^{20125704177493} is an apocalyptic number.

It is an amenable number.

20125704177493 is a deficient number, since it is larger than the sum of its proper divisors (488356932107).

20125704177493 is a wasteful number, since it uses less digits than its factorization.

20125704177493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454055091.

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 20125704177493 in words is "twenty trillion, one hundred twenty-five billion, seven hundred four million, one hundred seventy-seven thousand, four hundred ninety-three".