3405155678 has 4 divisors (see below), whose sum is σ = 5107733520. Its totient is φ = 1702577838.

The previous prime is 3405155659. The next prime is 3405155683. The reversal of 3405155678 is 8765515043.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 851288918 + ... + 851288921.

It is an arithmetic number, because the mean of its divisors is an integer number (1276933380).

Almost surely, 2^3405155678 is an apocalyptic number.

3405155678 is a deficient number, since it is larger than the sum of its proper divisors (1702577842).

3405155678 is a wasteful number, since it uses less digits than its factorization.

3405155678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702577841.

The product of its (nonzero) digits is 504000, while the sum is 44.

The square root of 3405155678 is about 58353.7117756874. The cubic root of 3405155678 is about 1504.4542677584.

The spelling of 3405155678 in words is "three billion, four hundred five million, one hundred fifty-five thousand, six hundred seventy-eight".