3478745128202 has 4 divisors (see below), whose sum is σ = 5218117692306. Its totient is φ = 1739372564100.

The previous prime is 3478745128193. The next prime is 3478745128223. The reversal of 3478745128202 is 2028215478743.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2406714746881 + 1072030381321 = 1551359^2 + 1035389^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 869686282049 + ... + 869686282052.

Almost surely, 2^{3478745128202} is an apocalyptic number.

3478745128202 is a deficient number, since it is larger than the sum of its proper divisors (1739372564104).

3478745128202 is a wasteful number, since it uses less digits than its factorization.

3478745128202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739372564103.

The product of its (nonzero) digits is 6021120, while the sum is 53.

The spelling of 3478745128202 in words is "three trillion, four hundred seventy-eight billion, seven hundred forty-five million, one hundred twenty-eight thousand, two hundred two".