78468416747149 has 16 divisors (see below), whose sum is σ = 92195167365504. Its totient is φ = 65841553915200.

The previous prime is 78468416747143. The next prime is 78468416747243. The reversal of 78468416747149 is 94174761486487.

It is a cyclic number.

It is not a de Polignac number, because 78468416747149 - 2³³ = 78459826812557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78468416747143) 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, 23728137 + ... + 26832094.

It is an arithmetic number, because the mean of its divisors is an integer number (5762197960344).

Almost surely, 2^{78468416747149} is an apocalyptic number.

It is an amenable number.

78468416747149 is a deficient number, since it is larger than the sum of its proper divisors (13726750618355).

78468416747149 is a wasteful number, since it uses less digits than its factorization.

78468416747149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50571108.

The product of its digits is 1820786688, while the sum is 76.

The spelling of 78468416747149 in words is "seventy-eight trillion, four hundred sixty-eight billion, four hundred sixteen million, seven hundred forty-seven thousand, one hundred forty-nine".