1388223545642 has 8 divisors (see below), whose sum is σ = 2117629137600. Its totient is φ = 682347166444.

The previous prime is 1388223545593. The next prime is 1388223545659. The reversal of 1388223545642 is 2465453228831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1388223545642² (a number of 25 digits) contains 22 as substring.

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, 5882303042 + ... + 5882303277.

It is an arithmetic number, because the mean of its divisors is an integer number (264703642200).

Almost surely, 2^{1388223545642} is an apocalyptic number.

1388223545642 is a deficient number, since it is larger than the sum of its proper divisors (729405591958).

1388223545642 is a wasteful number, since it uses less digits than its factorization.

1388223545642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11764606380.

The product of its digits is 11059200, while the sum is 53.

The spelling of 1388223545642 in words is "one trillion, three hundred eighty-eight billion, two hundred twenty-three million, five hundred forty-five thousand, six hundred forty-two".