3478438864545 has 32 divisors (see below), whose sum is σ = 5648899461120. Its totient is φ = 1827562027200.

The previous prime is 3478438864531. The next prime is 3478438864567. The reversal of 3478438864545 is 5454688348743.

It is a happy number.

3478438864545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3478438864545 - 2⁵ = 3478438864513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3478438864545.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5766481 + ... + 6341070.

It is an arithmetic number, because the mean of its divisors is an integer number (176528108160).

Almost surely, 2^{3478438864545} is an apocalyptic number.

It is an amenable number.

3478438864545 is a deficient number, since it is larger than the sum of its proper divisors (2170460596575).

3478438864545 is a wasteful number, since it uses less digits than its factorization.

3478438864545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12107845.

The product of its digits is 1238630400, while the sum is 69.

The spelling of 3478438864545 in words is "three trillion, four hundred seventy-eight billion, four hundred thirty-eight million, eight hundred sixty-four thousand, five hundred forty-five".