1764148800961 has 4 divisors (see below), whose sum is σ = 1764152246272. Its totient is φ = 1764145355652.

The previous prime is 1764148800959. The next prime is 1764148800991. The reversal of 1764148800961 is 1690088414671.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1764148800961 - 2¹ = 1764148800959 is a prime.

It is a super-2 number, since 2×1764148800961² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1764148800991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784161 + ... + 2035486.

It is an arithmetic number, because the mean of its divisors is an integer number (441038061568).

Almost surely, 2^{1764148800961} is an apocalyptic number.

It is an amenable number.

1764148800961 is a deficient number, since it is larger than the sum of its proper divisors (3445311).

1764148800961 is an equidigital number, since it uses as much as digits as its factorization.

1764148800961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445310.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 1764148800961 in words is "one trillion, seven hundred sixty-four billion, one hundred forty-eight million, eight hundred thousand, nine hundred sixty-one".