78465741150447 has 24 divisors (see below), whose sum is σ = 133709158502400. Its totient is φ = 43391193261840.

The previous prime is 78465741150319. The next prime is 78465741150469. The reversal of 78465741150447 is 74405114756487.

78465741150447 is a `hidden beast` number, since 7 + 8 + 4 + 6 + 5 + 74 + 11 + 504 + 47 = 666.

It is not a de Polignac number, because 78465741150447 - 2⁷ = 78465741150319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78465741150847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20088513447 + ... + 20088517352.

It is an arithmetic number, because the mean of its divisors is an integer number (5571214937600).

Almost surely, 2^{78465741150447} is an apocalyptic number.

78465741150447 is a deficient number, since it is larger than the sum of its proper divisors (55243417351953).

78465741150447 is a wasteful number, since it uses less digits than its factorization.

78465741150447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40177030843 (or 40177030840 counting only the distinct ones).

The product of its (nonzero) digits is 105369600, while the sum is 63.

The spelling of 78465741150447 in words is "seventy-eight trillion, four hundred sixty-five billion, seven hundred forty-one million, one hundred fifty thousand, four hundred forty-seven".