78458498496 has 336 divisors, whose sum is σ = 262429752000. Its totient is φ = 21948973056.

The previous prime is 78458498477. The next prime is 78458498509. The reversal of 78458498496 is 69489485487.

78458498496 is a `hidden beast` number, since 7 + 8 + 45 + 8 + 4 + 98 + 496 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43855170 + ... + 43856958.

Almost surely, 2^78458498496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78458498496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131214876000).

78458498496 is an abundant number, since it is smaller than the sum of its proper divisors (183971253504).

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

78458498496 is a wasteful number, since it uses less digits than its factorization.

78458498496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036 (or 2023 counting only the distinct ones).

The product of its digits is 557383680, while the sum is 72.

The spelling of 78458498496 in words is "seventy-eight billion, four hundred fifty-eight million, four hundred ninety-eight thousand, four hundred ninety-six".