1764825680 has 40 divisors (see below), whose sum is σ = 4152671712. Its totient is φ = 697422464.

The previous prime is 1764825679. The next prime is 1764825721. The reversal of 1764825680 is 865284671.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1764825680² = 6229219361574924800, which contains 22 as substring.

It is a congruent number.

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, 126254 + ... + 139533.

Almost surely, 2^1764825680 is an apocalyptic number.

1764825680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1764825680 is an abundant number, since it is smaller than the sum of its proper divisors (2387846032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1764825680 is a wasteful number, since it uses less digits than its factorization.

1764825680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265883 (or 265877 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 1764825680 is about 42009.8283738460. The cubic root of 1764825680 is about 1208.4646144904.

The spelling of 1764825680 in words is "one billion, seven hundred sixty-four million, eight hundred twenty-five thousand, six hundred eighty".