22028501297377 has 24 divisors (see below), whose sum is σ = 22963220771192. Its totient is φ = 21130105651200.

The previous prime is 22028501297339. The next prime is 22028501297419. The reversal of 22028501297377 is 77379210582022.

It can be written as a sum of positive squares in 12 ways, for example, as 3166296389281 + 18862204908096 = 1779409^2 + 4343064^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22028501297377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22028501292377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1434046177 + ... + 1434061537.

Almost surely, 2^{22028501297377} is an apocalyptic number.

It is an amenable number.

22028501297377 is a deficient number, since it is larger than the sum of its proper divisors (934719473815).

22028501297377 is a wasteful number, since it uses less digits than its factorization.

22028501297377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26437 (or 26408 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 22028501297377 in words is "twenty-two trillion, twenty-eight billion, five hundred one million, two hundred ninety-seven thousand, three hundred seventy-seven".