78470840474 has 8 divisors (see below), whose sum is σ = 126760588500. Its totient is φ = 36217310976.

The previous prime is 78470840449. The next prime is 78470840491. The reversal of 78470840474 is 47404807487.

It can be written as a sum of positive squares in 2 ways, for example, as 55486158025 + 22984682449 = 235555^2 + 151607^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509054599 + ... + 1509054650.

Almost surely, 2^78470840474 is an apocalyptic number.

78470840474 is a deficient number, since it is larger than the sum of its proper divisors (48289748026).

78470840474 is a wasteful number, since it uses less digits than its factorization.

78470840474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018109264.

The product of its (nonzero) digits is 5619712, while the sum is 53.

The spelling of 78470840474 in words is "seventy-eight billion, four hundred seventy million, eight hundred forty thousand, four hundred seventy-four".