6423625935493 has 4 divisors (see below), whose sum is σ = 6917751007468. Its totient is φ = 5929500863520.

The previous prime is 6423625935481. The next prime is 6423625935511. The reversal of 6423625935493 is 3945395263246.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1946309590404 + 4477316345089 = 1395102^2 + 2115967^2 .

It is not a de Polignac number, because 6423625935493 - 2²¹ = 6423623838341 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 (6423625930493) 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, 247062535968 + ... + 247062535993.

It is an arithmetic number, because the mean of its divisors is an integer number (1729437751867).

Almost surely, 2^{6423625935493} is an apocalyptic number.

It is an amenable number.

6423625935493 is a deficient number, since it is larger than the sum of its proper divisors (494125071975).

6423625935493 is a wasteful number, since it uses less digits than its factorization.

6423625935493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494125071974.

The product of its digits is 125971200, while the sum is 61.

The spelling of 6423625935493 in words is "six trillion, four hundred twenty-three billion, six hundred twenty-five million, nine hundred thirty-five thousand, four hundred ninety-three".