2225578280078 has 4 divisors (see below), whose sum is σ = 3338367420120. Its totient is φ = 1112789140038.

The previous prime is 2225578280039. The next prime is 2225578280111. The reversal of 2225578280078 is 8700828755222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2225578280078² (a number of 25 digits) contains 22 as substring.

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, 556394570018 + ... + 556394570021.

It is an arithmetic number, because the mean of its divisors is an integer number (834591855030).

Almost surely, 2^{2225578280078} is an apocalyptic number.

2225578280078 is a deficient number, since it is larger than the sum of its proper divisors (1112789140042).

2225578280078 is a wasteful number, since it uses less digits than its factorization.

2225578280078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112789140041.

The product of its (nonzero) digits is 10035200, while the sum is 56.

The spelling of 2225578280078 in words is "two trillion, two hundred twenty-five billion, five hundred seventy-eight million, two hundred eighty thousand, seventy-eight".