1074780765545 has 8 divisors (see below), whose sum is σ = 1289742546120. Its totient is φ = 859820860800.

The previous prime is 1074780765511. The next prime is 1074780765551. The reversal of 1074780765545 is 5455670874701.

It can be written as a sum of positive squares in 4 ways, for example, as 879656281 + 1073901109264 = 29659^2 + 1036292^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1074780765545 - 2¹⁶ = 1074780700009 is a prime.

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, 1722845 + ... + 2262245.

It is an arithmetic number, because the mean of its divisors is an integer number (161217818265).

Almost surely, 2^{1074780765545} is an apocalyptic number.

It is an amenable number.

1074780765545 is a deficient number, since it is larger than the sum of its proper divisors (214961780575).

1074780765545 is an equidigital number, since it uses as much as digits as its factorization.

1074780765545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937915.

The product of its (nonzero) digits is 32928000, while the sum is 59.

The spelling of 1074780765545 in words is "one trillion, seventy-four billion, seven hundred eighty million, seven hundred sixty-five thousand, five hundred forty-five".