3735221718 has 16 divisors (see below), whose sum is σ = 7471420416. Its totient is φ = 1244911080.

The previous prime is 3735221717. The next prime is 3735221753. The reversal of 3735221718 is 8171225373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3735221717) 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, 14823 + ... + 87693.

It is an arithmetic number, because the mean of its divisors is an integer number (466963776).

Almost surely, 2^3735221718 is an apocalyptic number.

3735221718 is an abundant number, since it is smaller than the sum of its proper divisors (3736198698).

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

3735221718 is a wasteful number, since it uses less digits than its factorization.

3735221718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81419.

The product of its digits is 70560, while the sum is 39.

The square root of 3735221718 is about 61116.4602868982. The cubic root of 3735221718 is about 1551.5726969010.

The spelling of 3735221718 in words is "three billion, seven hundred thirty-five million, two hundred twenty-one thousand, seven hundred eighteen".