823130841739 has 6 divisors (see below), whose sum is σ = 866457680460. Its totient is φ = 779804419320.

The previous prime is 823130841721. The next prime is 823130841749. The reversal of 823130841739 is 937148031328.

It is not a de Polignac number, because 823130841739 - 2²¹ = 823128744587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 823130841692 and 823130841701.

It is not an unprimeable number, because it can be changed into a prime (823130841719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3850609 + ... + 4058749.

It is an arithmetic number, because the mean of its divisors is an integer number (144409613410).

Almost surely, 2^823130841739 is an apocalyptic number.

823130841739 is a deficient number, since it is larger than the sum of its proper divisors (43326838721).

823130841739 is an frugal number, since it uses more digits than its factorization.

823130841739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416301 (or 208160 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 823130841739 in words is "eight hundred twenty-three billion, one hundred thirty million, eight hundred forty-one thousand, seven hundred thirty-nine".