78463015471764 has 144 divisors (see below), whose sum is σ = 252323859715200. Its totient is φ = 20380003983360.

The previous prime is 78463015471751. The next prime is 78463015471777. The reversal of 78463015471764 is 46717451036487.

It is a happy number.

78463015471764 is a `hidden beast` number, since 7 + 8 + 46 + 30 + 1 + 547 + 17 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (78463015471751) and next prime (78463015471777).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 288696429 + ... + 288968084.

It is an arithmetic number, because the mean of its divisors is an integer number (1752249025800).

Almost surely, 2^{78463015471764} is an apocalyptic number.

It is an amenable number.

78463015471764 is an abundant number, since it is smaller than the sum of its proper divisors (173860844243436).

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

78463015471764 is a wasteful number, since it uses less digits than its factorization.

78463015471764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577664555 (or 577664536 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 63.

The spelling of 78463015471764 in words is "seventy-eight trillion, four hundred sixty-three billion, fifteen million, four hundred seventy-one thousand, seven hundred sixty-four".