1040265410644 has 12 divisors (see below), whose sum is σ = 1820475583668. Its totient is φ = 520129529600.

The previous prime is 1040265410629. The next prime is 1040265410687. The reversal of 1040265410644 is 4460145620401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 183552264900 + 856713145744 = 428430^2 + 925588^2 .

It is a congruent number.

It is an unprimeable number.

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, 40554 + ... + 1442974.

It is an arithmetic number, because the mean of its divisors is an integer number (151706298639).

Almost surely, 2^{1040265410644} is an apocalyptic number.

It is an amenable number.

1040265410644 is a deficient number, since it is larger than the sum of its proper divisors (780210173024).

1040265410644 is a wasteful number, since it uses less digits than its factorization.

1040265410644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587866 (or 1587864 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 1040265410644 in words is "one trillion, forty billion, two hundred sixty-five million, four hundred ten thousand, six hundred forty-four".