945423197593 has 32 divisors (see below), whose sum is σ = 1156478238720. Its totient is φ = 755420904000.

The previous prime is 945423197557. The next prime is 945423197639. The reversal of 945423197593 is 395791324549.

It is a happy number.

It is not a de Polignac number, because 945423197593 - 2²¹ = 945421100441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (945423197503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2537998 + ... + 2886568.

It is an arithmetic number, because the mean of its divisors is an integer number (36139944960).

Almost surely, 2^945423197593 is an apocalyptic number.

It is an amenable number.

945423197593 is a deficient number, since it is larger than the sum of its proper divisors (211055041127).

945423197593 is a wasteful number, since it uses less digits than its factorization.

945423197593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349069.

The product of its digits is 36741600, while the sum is 61.

The spelling of 945423197593 in words is "nine hundred forty-five billion, four hundred twenty-three million, one hundred ninety-seven thousand, five hundred ninety-three".