1400964656744 has 8 divisors (see below), whose sum is σ = 2626808731410. Its totient is φ = 700482328368.

The previous prime is 1400964656743. The next prime is 1400964656761. The reversal of 1400964656744 is 4476564690041.

It can be written as a sum of positive squares in only one way, i.e., 1380037562500 + 20927094244 = 1174750^2 + 144662^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1400964656744.

It is not an unprimeable number, because it can be changed into a prime (1400964656743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87560291039 + ... + 87560291054.

Almost surely, 2^{1400964656744} is an apocalyptic number.

It is an amenable number.

1400964656744 is a deficient number, since it is larger than the sum of its proper divisors (1225844074666).

1400964656744 is a wasteful number, since it uses less digits than its factorization.

1400964656744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175120582099 (or 175120582095 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 56.

The spelling of 1400964656744 in words is "one trillion, four hundred billion, nine hundred sixty-four million, six hundred fifty-six thousand, seven hundred forty-four".