22444471378 has 16 divisors (see below), whose sum is σ = 38502788544. Its totient is φ = 9612421200.

The previous prime is 22444471349. The next prime is 22444471471. The reversal of 22444471378 is 87317444422.

It is a super-2 number, since 2×22444471378² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532125 + ... + 572752.

It is an arithmetic number, because the mean of its divisors is an integer number (2406424284).

Almost surely, 2^22444471378 is an apocalyptic number.

22444471378 is a deficient number, since it is larger than the sum of its proper divisors (16058317166).

22444471378 is a wasteful number, since it uses less digits than its factorization.

22444471378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106337.

The product of its digits is 1204224, while the sum is 46.

The spelling of 22444471378 in words is "twenty-two billion, four hundred forty-four million, four hundred seventy-one thousand, three hundred seventy-eight".