3918220013 has 8 divisors (see below), whose sum is σ = 3957547776. Its totient is φ = 3878917200.

The previous prime is 3918219997. The next prime is 3918220051. The reversal of 3918220013 is 3100228193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3918220013 - 2⁴ = 3918219997 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 (3918220213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584903 + ... + 591563.

It is an arithmetic number, because the mean of its divisors is an integer number (494693472).

Almost surely, 2^3918220013 is an apocalyptic number.

It is an amenable number.

3918220013 is a deficient number, since it is larger than the sum of its proper divisors (39327763).

3918220013 is a wasteful number, since it uses less digits than its factorization.

3918220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12475.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 3918220013 is about 62595.6868562044. The cubic root of 3918220013 is about 1576.5083409432.

It can be divided in two parts, 39182 and 20013, that added together give a palindrome (59195).

The spelling of 3918220013 in words is "three billion, nine hundred eighteen million, two hundred twenty thousand, thirteen".