1400572910857 has 2 divisors, whose sum is σ = 1400572910858. Its totient is φ = 1400572910856.

The previous prime is 1400572910747. The next prime is 1400572910963. The reversal of 1400572910857 is 7580192750041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1378020079881 + 22552830976 = 1173891^2 + 150176^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400572910857 - 2¹⁹ = 1400572386569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1400572910857.

It is not a weakly prime, because it can be changed into another prime (1400572916857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700286455428 + 700286455429.

It is an arithmetic number, because the mean of its divisors is an integer number (700286455429).

Almost surely, 2^{1400572910857} is an apocalyptic number.

It is an amenable number.

1400572910857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400572910857 is an equidigital number, since it uses as much as digits as its factorization.

1400572910857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 1400572910857 in words is "one trillion, four hundred billion, five hundred seventy-two million, nine hundred ten thousand, eight hundred fifty-seven".