78271407458245 has 8 divisors (see below), whose sum is σ = 94110218793720. Its totient is φ = 62494106070720.

The previous prime is 78271407458227. The next prime is 78271407458273. The reversal of 78271407458245 is 54285470417287.

78271407458245 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 21102474750049 + 57168932708196 = 4593743^2 + 7561014^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78271407458245 - 2⁷ = 78271407458117 is a prime.

It is a super-2 number, since 2×78271407458245² (a number of 29 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 7 ways as a sum of consecutive naturals, for example, 15377484186 + ... + 15377489275.

It is an arithmetic number, because the mean of its divisors is an integer number (11763777349215).

Almost surely, 2^{78271407458245} is an apocalyptic number.

It is an amenable number.

78271407458245 is a deficient number, since it is larger than the sum of its proper divisors (15838811335475).

78271407458245 is a wasteful number, since it uses less digits than its factorization.

78271407458245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30754973975.

The product of its (nonzero) digits is 140492800, while the sum is 64.

The spelling of 78271407458245 in words is "seventy-eight trillion, two hundred seventy-one billion, four hundred seven million, four hundred fifty-eight thousand, two hundred forty-five".