42667121396 has 6 divisors (see below), whose sum is σ = 74667462450. Its totient is φ = 21333560696.

The previous prime is 42667121381. The next prime is 42667121417. The reversal of 42667121396 is 69312176624.

It can be written as a sum of positive squares in only one way, i.e., 41528733796 + 1138387600 = 203786^2 + 33740^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42667121396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5333390171 + ... + 5333390178.

It is an arithmetic number, because the mean of its divisors is an integer number (12444577075).

Almost surely, 2^42667121396 is an apocalyptic number.

It is an amenable number.

42667121396 is a deficient number, since it is larger than the sum of its proper divisors (32000341054).

42667121396 is a wasteful number, since it uses less digits than its factorization.

42667121396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10666780353 (or 10666780351 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The spelling of 42667121396 in words is "forty-two billion, six hundred sixty-seven million, one hundred twenty-one thousand, three hundred ninety-six".