2238644173465 has 24 divisors (see below), whose sum is σ = 3191453142912. Its totient is φ = 1502409212640.

The previous prime is 2238644173427. The next prime is 2238644173481. The reversal of 2238644173465 is 5643714468322.

It is not a de Polignac number, because 2238644173465 - 2³⁵ = 2204284435097 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97194051 + ... + 97217080.

It is an arithmetic number, because the mean of its divisors is an integer number (132977214288).

Almost surely, 2^{2238644173465} is an apocalyptic number.

It is an amenable number.

2238644173465 is a deficient number, since it is larger than the sum of its proper divisors (952808969447).

2238644173465 is a wasteful number, since it uses less digits than its factorization.

2238644173465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194411197 (or 194411190 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 55.

The spelling of 2238644173465 in words is "two trillion, two hundred thirty-eight billion, six hundred forty-four million, one hundred seventy-three thousand, four hundred sixty-five".