78354024560 has 80 divisors (see below), whose sum is σ = 217249952256. Its totient is φ = 25696222464.

The previous prime is 78354024559. The next prime is 78354024563. The reversal of 78354024560 is 6542045387.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×78354024560² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78354024563) 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, 3028814 + ... + 3054573.

Almost surely, 2^78354024560 is an apocalyptic number.

78354024560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78354024560 is an abundant number, since it is smaller than the sum of its proper divisors (138895927696).

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

78354024560 is a wasteful number, since it uses less digits than its factorization.

78354024560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6083430 (or 6083424 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 78354024560 in words is "seventy-eight billion, three hundred fifty-four million, twenty-four thousand, five hundred sixty".