423656577380 has 48 divisors (see below), whose sum is σ = 942291448560. Its totient is φ = 159447072768.

The previous prime is 423656577371. The next prime is 423656577389. The reversal of 423656577380 is 83775656324.

It is an interprime number because it is at equal distance from previous prime (423656577371) and next prime (423656577389).

It can be written as a sum of positive squares in 8 ways, for example, as 3368873764 + 420287703616 = 58042^2 + 648296^2 .

It is not an unprimeable number, because it can be changed into a prime (423656577389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 977876 + ... + 1342964.

It is an arithmetic number, because the mean of its divisors is an integer number (19631071845).

Almost surely, 2^423656577380 is an apocalyptic number.

It is an amenable number.

423656577380 is an abundant number, since it is smaller than the sum of its proper divisors (518634871180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423656577380 is a wasteful number, since it uses less digits than its factorization.

423656577380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368528 (or 368526 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 56.

The spelling of 423656577380 in words is "four hundred twenty-three billion, six hundred fifty-six million, five hundred seventy-seven thousand, three hundred eighty".