826469638412 has 12 divisors (see below), whose sum is σ = 1577805673416. Its totient is φ = 375668017440.

The previous prime is 826469638403. The next prime is 826469638469. The reversal of 826469638412 is 214836964628.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9391700393 + ... + 9391700480.

It is an arithmetic number, because the mean of its divisors is an integer number (131483806118).

Almost surely, 2^826469638412 is an apocalyptic number.

It is an amenable number.

826469638412 is a deficient number, since it is larger than the sum of its proper divisors (751336035004).

826469638412 is a wasteful number, since it uses less digits than its factorization.

826469638412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18783400888 (or 18783400886 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 59.

The spelling of 826469638412 in words is "eight hundred twenty-six billion, four hundred sixty-nine million, six hundred thirty-eight thousand, four hundred twelve".