80837690047 has 2 divisors, whose sum is σ = 80837690048. Its totient is φ = 80837690046.

The previous prime is 80837690033. The next prime is 80837690099. The reversal of 80837690047 is 74009673808.

It is a happy number.

It is an a-pointer prime, because the next prime (80837690099) can be obtained adding 80837690047 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80837690047 - 2¹¹ = 80837687999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80837689976 and 80837690003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80837690027) 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 as a sum of consecutive naturals, namely, 40418845023 + 40418845024.

It is an arithmetic number, because the mean of its divisors is an integer number (40418845024).

Almost surely, 2^80837690047 is an apocalyptic number.

80837690047 is a deficient number, since it is larger than the sum of its proper divisors (1).

80837690047 is an equidigital number, since it uses as much as digits as its factorization.

80837690047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 52.

It can be divided in two parts, 80837 and 690047, that added together give a square (770884 = 878²).

The spelling of 80837690047 in words is "eighty billion, eight hundred thirty-seven million, six hundred ninety thousand, forty-seven".