1764672063 has 128 divisors (see below), whose sum is σ = 3327713280. Its totient is φ = 802897920.

The previous prime is 1764672031. The next prime is 1764672089. The reversal of 1764672063 is 3602764671.

It is a happy number.

It is a Cunningham number, because it is equal to 42008²-1.

It is not a de Polignac number, because 1764672063 - 2⁵ = 1764672031 is a prime.

It is a super-2 number, since 2×1764672063² = 6228134979865351938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1764672463) 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 127 ways as a sum of consecutive naturals, for example, 4998895 + ... + 4999247.

It is an arithmetic number, because the mean of its divisors is an integer number (25997760).

Almost surely, 2^1764672063 is an apocalyptic number.

1764672063 is a deficient number, since it is larger than the sum of its proper divisors (1563041217).

1764672063 is a wasteful number, since it uses less digits than its factorization.

1764672063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477.

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 1764672063 is about 42007.9999880975. Note that the first 4 decimals coincide. The cubic root of 1764672063 is about 1208.4295503861.

The spelling of 1764672063 in words is "one billion, seven hundred sixty-four million, six hundred seventy-two thousand, sixty-three".