64461443075 has 12 divisors (see below), whose sum is σ = 80025268680. Its totient is φ = 51509103360.

The previous prime is 64461443063. The next prime is 64461443087. The reversal of 64461443075 is 57034416446.

It is an interprime number because it is at equal distance from previous prime (64461443063) and next prime (64461443087).

It is not a de Polignac number, because 64461443075 - 2⁸ = 64461442819 is a prime.

It is a super-2 number, since 2×64461443075² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1479374 + ... + 1522323.

It is an arithmetic number, because the mean of its divisors is an integer number (6668772390).

Almost surely, 2^64461443075 is an apocalyptic number.

64461443075 is a deficient number, since it is larger than the sum of its proper divisors (15563825605).

64461443075 is a wasteful number, since it uses less digits than its factorization.

64461443075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002566 (or 3002561 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 64461443075 in words is "sixty-four billion, four hundred sixty-one million, four hundred forty-three thousand, seventy-five".