38223911478 has 16 divisors (see below), whose sum is σ = 76457234160. Its totient is φ = 12739735296.

The previous prime is 38223911423. The next prime is 38223911489. The reversal of 38223911478 is 87411932283.

It is a happy number.

It is a super-2 number, since 2×38223911478² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338775 + ... + 437282.

It is an arithmetic number, because the mean of its divisors is an integer number (4778577135).

Almost surely, 2^38223911478 is an apocalyptic number.

38223911478 is an abundant number, since it is smaller than the sum of its proper divisors (38233322682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38223911478 is a wasteful number, since it uses less digits than its factorization.

38223911478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784271.

The product of its digits is 580608, while the sum is 48.

The spelling of 38223911478 in words is "thirty-eight billion, two hundred twenty-three million, nine hundred eleven thousand, four hundred seventy-eight".