1964085071 has 16 divisors (see below), whose sum is σ = 2178976800. Its totient is φ = 1758879360.

The previous prime is 1964085047. The next prime is 1964085103. The reversal of 1964085071 is 1705804691.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1964085071 is a prime.

It is a super-2 number, since 2×1964085071² = 7715260332250150082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964085041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71501 + ... + 95081.

It is an arithmetic number, because the mean of its divisors is an integer number (136186050).

Almost surely, 2^1964085071 is an apocalyptic number.

1964085071 is a deficient number, since it is larger than the sum of its proper divisors (214891729).

1964085071 is a wasteful number, since it uses less digits than its factorization.

1964085071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23786.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 1964085071 is about 44317.9994020488. Note that the first 3 decimals coincide. The cubic root of 1964085071 is about 1252.3337885132. Note that the first 3 decimals are identical.

The spelling of 1964085071 in words is "one billion, nine hundred sixty-four million, eighty-five thousand, seventy-one".