7181412438388 has 6 divisors (see below), whose sum is σ = 12567471767186. Its totient is φ = 3590706219192.

The previous prime is 7181412438383. The next prime is 7181412438427. The reversal of 7181412438388 is 8838342141817.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7139359553764 + 42052884624 = 2671958^2 + 205068^2 .

It is a super-2 number, since 2×7181412438388² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7181412438383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 897676554795 + ... + 897676554802.

Almost surely, 2^{7181412438388} is an apocalyptic number.

It is an amenable number.

7181412438388 is a deficient number, since it is larger than the sum of its proper divisors (5386059328798).

7181412438388 is a wasteful number, since it uses less digits than its factorization.

7181412438388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795353109601 (or 1795353109599 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 58.

The spelling of 7181412438388 in words is "seven trillion, one hundred eighty-one billion, four hundred twelve million, four hundred thirty-eight thousand, three hundred eighty-eight".