3914778402485 has 16 divisors (see below), whose sum is σ = 4718374524864. Its totient is φ = 3118065155712.

The previous prime is 3914778402481. The next prime is 3914778402527. The reversal of 3914778402485 is 5842048774193.

It is a cyclic number.

It is not a de Polignac number, because 3914778402485 - 2² = 3914778402481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3914778402481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11674574 + ... + 12005216.

It is an arithmetic number, because the mean of its divisors is an integer number (294898407804).

Almost surely, 2^{3914778402485} is an apocalyptic number.

It is an amenable number.

3914778402485 is a deficient number, since it is larger than the sum of its proper divisors (803596122379).

3914778402485 is a wasteful number, since it uses less digits than its factorization.

3914778402485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341044.

The product of its (nonzero) digits is 54190080, while the sum is 62.

The spelling of 3914778402485 in words is "three trillion, nine hundred fourteen billion, seven hundred seventy-eight million, four hundred two thousand, four hundred eighty-five".