3694428694278 has 24 divisors (see below), whose sum is σ = 9148109148048. Its totient is φ = 1055551055472.

The previous prime is 3694428694277. The next prime is 3694428694283. The reversal of 3694428694278 is 8724968244963.

3694428694278 is a `hidden beast` number, since 3 + 6 + 94 + 428 + 6 + 9 + 42 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3694428694277) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 14660431201 + ... + 14660431452.

It is an arithmetic number, because the mean of its divisors is an integer number (381171214502).

Almost surely, 2^{3694428694278} is an apocalyptic number.

3694428694278 is an abundant number, since it is smaller than the sum of its proper divisors (5453680453770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3694428694278 is a wasteful number, since it uses less digits than its factorization.

3694428694278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29320862668 (or 29320862665 counting only the distinct ones).

The product of its digits is 1003290624, while the sum is 72.

The spelling of 3694428694278 in words is "three trillion, six hundred ninety-four billion, four hundred twenty-eight million, six hundred ninety-four thousand, two hundred seventy-eight".