3318644825427 has 24 divisors (see below), whose sum is σ = 4585082523840. Its totient is φ = 2135029828960.

The previous prime is 3318644825423. The next prime is 3318644825453. The reversal of 3318644825427 is 7245284468133.

It is a happy number.

3318644825427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3318644825427 - 2² = 3318644825423 is a prime.

It is a super-2 number, since 2×3318644825427² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3318644825423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4531324 + ... + 5212502.

It is an arithmetic number, because the mean of its divisors is an integer number (191045105160).

Almost surely, 2^{3318644825427} is an apocalyptic number.

3318644825427 is a deficient number, since it is larger than the sum of its proper divisors (1266437698413).

3318644825427 is a wasteful number, since it uses less digits than its factorization.

3318644825427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683171 (or 683142 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 57.

The spelling of 3318644825427 in words is "three trillion, three hundred eighteen billion, six hundred forty-four million, eight hundred twenty-five thousand, four hundred twenty-seven".