7143918556 has 12 divisors (see below), whose sum is σ = 12806781120. Its totient is φ = 3484838240.

The previous prime is 7143918539. The next prime is 7143918581. The reversal of 7143918556 is 6558193417.

It is a super-2 number, since 2×7143918556² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21780076 + ... + 21780403.

It is an arithmetic number, because the mean of its divisors is an integer number (1067231760).

Almost surely, 2^7143918556 is an apocalyptic number.

It is an amenable number.

7143918556 is a deficient number, since it is larger than the sum of its proper divisors (5662862564).

7143918556 is a wasteful number, since it uses less digits than its factorization.

7143918556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43560524 (or 43560522 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The square root of 7143918556 is about 84521.7046444285. The cubic root of 7143918556 is about 1925.9521735490.

The spelling of 7143918556 in words is "seven billion, one hundred forty-three million, nine hundred eighteen thousand, five hundred fifty-six".