78712466307078 has 32 divisors (see below), whose sum is σ = 164420063039232. Its totient is φ = 25073724922400.

The previous prime is 78712466307073. The next prime is 78712466307091. The reversal of 78712466307078 is 87070366421787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78712466307073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261251913 + ... + 261553028.

It is an arithmetic number, because the mean of its divisors is an integer number (5138126969976).

Almost surely, 2^{78712466307078} is an apocalyptic number.

78712466307078 is an abundant number, since it is smaller than the sum of its proper divisors (85707596732154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78712466307078 is a wasteful number, since it uses less digits than its factorization.

78712466307078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522806060.

The product of its (nonzero) digits is 132765696, while the sum is 66.

The spelling of 78712466307078 in words is "seventy-eight trillion, seven hundred twelve billion, four hundred sixty-six million, three hundred seven thousand, seventy-eight".