22444577777890 has 32 divisors (see below), whose sum is σ = 41404247161200. Its totient is φ = 8754915609600.

The previous prime is 22444577777861. The next prime is 22444577777933. The reversal of 22444577777890 is 9877777544422.

It can be written as a sum of positive squares in 8 ways, for example, as 3669021489961 + 18775556287929 = 1915469^2 + 4333077^2 .

It is a super-2 number, since 2×22444577777890² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11413315 + ... + 13234534.

Almost surely, 2^{22444577777890} is an apocalyptic number.

22444577777890 is a deficient number, since it is larger than the sum of its proper divisors (18959669383310).

22444577777890 is a wasteful number, since it uses less digits than its factorization.

22444577777890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24650118.

The product of its (nonzero) digits is 1548933120, while the sum is 73.

The spelling of 22444577777890 in words is "twenty-two trillion, four hundred forty-four billion, five hundred seventy-seven million, seven hundred seventy-seven thousand, eight hundred ninety".