1145215388438 has 32 divisors (see below), whose sum is σ = 1897938432000. Its totient is φ = 513901365120.

The previous prime is 1145215388419. The next prime is 1145215388441. The reversal of 1145215388438 is 8348835125411.

It is a self number, because there is not a number n which added to its sum of digits gives 1145215388438.

It is a congruent number.

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, 16370078 + ... + 16439886.

It is an arithmetic number, because the mean of its divisors is an integer number (59310576000).

Almost surely, 2^{1145215388438} is an apocalyptic number.

1145215388438 is a deficient number, since it is larger than the sum of its proper divisors (752723043562).

1145215388438 is a wasteful number, since it uses less digits than its factorization.

1145215388438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79340.

The product of its digits is 3686400, while the sum is 53.

The spelling of 1145215388438 in words is "one trillion, one hundred forty-five billion, two hundred fifteen million, three hundred eighty-eight thousand, four hundred thirty-eight".