78077315043 has 96 divisors (see below), whose sum is σ = 146193868800. Its totient is φ = 40306616064.

The previous prime is 78077315027. The next prime is 78077315051. The reversal of 78077315043 is 34051377087.

78077315043 is a `hidden beast` number, since 78 + 0 + 7 + 73 + 1 + 504 + 3 = 666.

It is not a de Polignac number, because 78077315043 - 2⁴ = 78077315027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78077315043.

It is not an unprimeable number, because it can be changed into a prime (78077315093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1475223 + ... + 1527231.

It is an arithmetic number, because the mean of its divisors is an integer number (1522852800).

Almost surely, 2^78077315043 is an apocalyptic number.

78077315043 is a deficient number, since it is larger than the sum of its proper divisors (68116553757).

78077315043 is a wasteful number, since it uses less digits than its factorization.

78077315043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52098 (or 52079 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 78077315043 in words is "seventy-eight billion, seventy-seven million, three hundred fifteen thousand, forty-three".