4197964618 has 16 divisors (see below), whose sum is σ = 6314064840. Its totient is φ = 2093285376.

The previous prime is 4197964609. The next prime is 4197964627. The reversal of 4197964618 is 8164697914.

It is an interprime number because it is at equal distance from previous prime (4197964609) and next prime (4197964627).

It can be written as a sum of positive squares in 4 ways, for example, as 4062405169 + 135559449 = 63737^2 + 11643^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1559818 + ... + 1562506.

Almost surely, 2^4197964618 is an apocalyptic number.

4197964618 is a deficient number, since it is larger than the sum of its proper divisors (2116100222).

4197964618 is a wasteful number, since it uses less digits than its factorization.

4197964618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521.

The product of its digits is 2612736, while the sum is 55.

The square root of 4197964618 is about 64791.7017680505. The cubic root of 4197964618 is about 1613.1679734650.

The spelling of 4197964618 in words is "four billion, one hundred ninety-seven million, nine hundred sixty-four thousand, six hundred eighteen".