78532467408 has 80 divisors (see below), whose sum is σ = 225487948800. Its totient is φ = 26169281280.

The previous prime is 78532467401. The next prime is 78532467427. The reversal of 78532467408 is 80476423587.

78532467408 is a `hidden beast` number, since 7 + 8 + 532 + 4 + 67 + 40 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78532467401) 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, 1438108 + ... + 1491716.

It is an arithmetic number, because the mean of its divisors is an integer number (2818599360).

Almost surely, 2^78532467408 is an apocalyptic number.

It is an amenable number.

78532467408 is an abundant number, since it is smaller than the sum of its proper divisors (146955481392).

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

78532467408 is a wasteful number, since it uses less digits than its factorization.

78532467408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57017 (or 57005 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 78532467408 in words is "seventy-eight billion, five hundred thirty-two million, four hundred sixty-seven thousand, four hundred eight".