31425613641623 has 8 divisors (see below), whose sum is σ = 32193021393456. Its totient is φ = 30658250145600.

The previous prime is 31425613641601. The next prime is 31425613641629. The reversal of 31425613641623 is 32614631652413.

It is a happy number.

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 31425613641623 - 2¹⁰ = 31425613640599 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 (31425613641629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9624173 + ... + 12468998.

It is an arithmetic number, because the mean of its divisors is an integer number (4024127674182).

Almost surely, 2^{31425613641623} is an apocalyptic number.

31425613641623 is a deficient number, since it is larger than the sum of its proper divisors (767407751833).

31425613641623 is a wasteful number, since it uses less digits than its factorization.

31425613641623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22127905.

The product of its digits is 1866240, while the sum is 47.

The spelling of 31425613641623 in words is "thirty-one trillion, four hundred twenty-five billion, six hundred thirteen million, six hundred forty-one thousand, six hundred twenty-three".