78541452385 has 8 divisors (see below), whose sum is σ = 102817901376. Its totient is φ = 57121056240.

The previous prime is 78541452383. The next prime is 78541452389. The reversal of 78541452385 is 58325414587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78541452385 - 2¹ = 78541452383 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78541452383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714013149 + ... + 714013258.

It is an arithmetic number, because the mean of its divisors is an integer number (12852237672).

Almost surely, 2^78541452385 is an apocalyptic number.

It is an amenable number.

78541452385 is a deficient number, since it is larger than the sum of its proper divisors (24276448991).

78541452385 is a wasteful number, since it uses less digits than its factorization.

78541452385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428026423.

The product of its digits is 5376000, while the sum is 52.

The spelling of 78541452385 in words is "seventy-eight billion, five hundred forty-one million, four hundred fifty-two thousand, three hundred eighty-five".