3421957618 has 16 divisors (see below), whose sum is σ = 5416295040. Its totient is φ = 1618197856.

The previous prime is 3421957613. The next prime is 3421957681. The reversal of 3421957618 is 8167591243.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (3421957613) 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, 413830 + ... + 422017.

It is an arithmetic number, because the mean of its divisors is an integer number (338518440).

Almost surely, 2^3421957618 is an apocalyptic number.

3421957618 is a deficient number, since it is larger than the sum of its proper divisors (1994337422).

3421957618 is a wasteful number, since it uses less digits than its factorization.

3421957618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835961.

The product of its digits is 362880, while the sum is 46.

The square root of 3421957618 is about 58497.5009551690. The cubic root of 3421957618 is about 1506.9246676087.

The spelling of 3421957618 in words is "three billion, four hundred twenty-one million, nine hundred fifty-seven thousand, six hundred eighteen".