821274702003 has 12 divisors (see below), whose sum is σ = 1355755063728. Its totient is φ = 469299829680.

The previous prime is 821274701971. The next prime is 821274702007. The reversal of 821274702003 is 300207472128.

It is not a de Polignac number, because 821274702003 - 2⁵ = 821274701971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (821274702007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6518053128 + ... + 6518053253.

It is an arithmetic number, because the mean of its divisors is an integer number (112979588644).

Almost surely, 2^821274702003 is an apocalyptic number.

821274702003 is a deficient number, since it is larger than the sum of its proper divisors (534480361725).

821274702003 is a wasteful number, since it uses less digits than its factorization.

821274702003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13036106394 (or 13036106391 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 821274702003 in words is "eight hundred twenty-one billion, two hundred seventy-four million, seven hundred two thousand, three".