36440705478238 has 4 divisors (see below), whose sum is σ = 54661058217360. Its totient is φ = 18220352739118.

The previous prime is 36440705478227. The next prime is 36440705478239. The reversal of 36440705478238 is 83287450704463.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36440705478239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9110176369558 + ... + 9110176369561.

It is an arithmetic number, because the mean of its divisors is an integer number (13665264554340).

Almost surely, 2^{36440705478238} is an apocalyptic number.

36440705478238 is a deficient number, since it is larger than the sum of its proper divisors (18220352739122).

36440705478238 is a wasteful number, since it uses less digits than its factorization.

36440705478238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18220352739121.

The product of its (nonzero) digits is 108380160, while the sum is 61.

The spelling of 36440705478238 in words is "thirty-six trillion, four hundred forty billion, seven hundred five million, four hundred seventy-eight thousand, two hundred thirty-eight".