78507062043556 has 12 divisors (see below), whose sum is σ = 137781018631900. Its totient is φ = 39141056720160.

The previous prime is 78507062043539. The next prime is 78507062043617. The reversal of 78507062043556 is 65534026070587.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28680630484900 + 49826431558656 = 5355430^2 + 7058784^2 .

It is a super-2 number, since 2×78507062043556² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 78507062043556.

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, 28118573835 + ... + 28118576626.

Almost surely, 2^{78507062043556} is an apocalyptic number.

It is an amenable number.

78507062043556 is a deficient number, since it is larger than the sum of its proper divisors (59273956588344).

78507062043556 is a wasteful number, since it uses less digits than its factorization.

78507062043556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56237150814 (or 56237150812 counting only the distinct ones).

The product of its (nonzero) digits is 42336000, while the sum is 58.

The spelling of 78507062043556 in words is "seventy-eight trillion, five hundred seven billion, sixty-two million, forty-three thousand, five hundred fifty-six".