82123571489403 has 16 divisors (see below), whose sum is σ = 109776415072896. Its totient is φ = 54610045476480.

The previous prime is 82123571489387. The next prime is 82123571489429. The reversal of 82123571489403 is 30498417532128.

It is not a de Polignac number, because 82123571489403 - 2⁴ = 82123571489387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82123571489473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17627625 + ... + 21794042.

It is an arithmetic number, because the mean of its divisors is an integer number (6861025942056).

Almost surely, 2^{82123571489403} is an apocalyptic number.

82123571489403 is a deficient number, since it is larger than the sum of its proper divisors (27652843583493).

82123571489403 is a wasteful number, since it uses less digits than its factorization.

82123571489403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39423434.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 82123571489403 in words is "eighty-two trillion, one hundred twenty-three billion, five hundred seventy-one million, four hundred eighty-nine thousand, four hundred three".