3478812136768 has 28 divisors (see below), whose sum is σ = 6903506286432. Its totient is φ = 1739345985920.

The previous prime is 3478812136741. The next prime is 3478812136781. The reversal of 3478812136768 is 8676312188743.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958221 + ... + 2806387.

It is an arithmetic number, because the mean of its divisors is an integer number (246553795944).

Almost surely, 2^{3478812136768} is an apocalyptic number.

It is an amenable number.

3478812136768 is a deficient number, since it is larger than the sum of its proper divisors (3424694149664).

3478812136768 is a wasteful number, since it uses less digits than its factorization.

3478812136768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877590 (or 1877580 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 64.

The spelling of 3478812136768 in words is "three trillion, four hundred seventy-eight billion, eight hundred twelve million, one hundred thirty-six thousand, seven hundred sixty-eight".