1946664763 has 4 divisors (see below), whose sum is σ = 1961992960. Its totient is φ = 1931336568.

The previous prime is 1946664691. The next prime is 1946664767. The reversal of 1946664763 is 3674666491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3674666491 = 211 ⋅17415481.

It is a cyclic number.

It is not a de Polignac number, because 1946664763 - 2¹⁷ = 1946533691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1946664763.

It is not an unprimeable number, because it can be changed into a prime (1946664767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7663908 + ... + 7664161.

It is an arithmetic number, because the mean of its divisors is an integer number (490498240).

Almost surely, 2^1946664763 is an apocalyptic number.

1946664763 is a deficient number, since it is larger than the sum of its proper divisors (15328197).

1946664763 is a wasteful number, since it uses less digits than its factorization.

1946664763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15328196.

The product of its digits is 3919104, while the sum is 52.

The square root of 1946664763 is about 44121.0240474992. The cubic root of 1946664763 is about 1248.6202937956.

The spelling of 1946664763 in words is "one billion, nine hundred forty-six million, six hundred sixty-four thousand, seven hundred sixty-three".