78448323676811 has 8 divisors (see below), whose sum is σ = 85581107660784. Its totient is φ = 71315726058720.

The previous prime is 78448323676763. The next prime is 78448323676817. The reversal of 78448323676811 is 11867632384487.

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

It is not a de Polignac number, because 78448323676811 - 2⁴² = 74050277165707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78448323676817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45710600 + ... + 47395733.

It is an arithmetic number, because the mean of its divisors is an integer number (10697638457598).

Almost surely, 2^{78448323676811} is an apocalyptic number.

78448323676811 is a deficient number, since it is larger than the sum of its proper divisors (7132783983973).

78448323676811 is a wasteful number, since it uses less digits than its factorization.

78448323676811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93182941.

The product of its digits is 260112384, while the sum is 68.

The spelling of 78448323676811 in words is "seventy-eight trillion, four hundred forty-eight billion, three hundred twenty-three million, six hundred seventy-six thousand, eight hundred eleven".