22778246033378 has 24 divisors (see below), whose sum is σ = 37556342789196. Its totient is φ = 10353617429760.

The previous prime is 22778246033369. The next prime is 22778246033399. The reversal of 22778246033378 is 87333064287722.

It can be written as a sum of positive squares in 2 ways, for example, as 20959613079889 + 1818632953489 = 4578167^2 + 1348567^2 .

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22778246033378.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20090126 + ... + 21193622.

Almost surely, 2^{22778246033378} is an apocalyptic number.

22778246033378 is a deficient number, since it is larger than the sum of its proper divisors (14778096755818).

22778246033378 is a wasteful number, since it uses less digits than its factorization.

22778246033378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188818 (or 1188807 counting only the distinct ones).

The product of its (nonzero) digits is 113799168, while the sum is 62.

The spelling of 22778246033378 in words is "twenty-two trillion, seven hundred seventy-eight billion, two hundred forty-six million, thirty-three thousand, three hundred seventy-eight".