83090921047 has 2 divisors, whose sum is σ = 83090921048. Its totient is φ = 83090921046.

The previous prime is 83090921027. The next prime is 83090921099. The reversal of 83090921047 is 74012909038.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83090921047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83090920994 and 83090921012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83090921027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41545460523 + 41545460524.

It is an arithmetic number, because the mean of its divisors is an integer number (41545460524).

Almost surely, 2^83090921047 is an apocalyptic number.

83090921047 is a deficient number, since it is larger than the sum of its proper divisors (1).

83090921047 is an equidigital number, since it uses as much as digits as its factorization.

83090921047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 83090921047 in words is "eighty-three billion, ninety million, nine hundred twenty-one thousand, forty-seven".