1421044217761 has 16 divisors (see below), whose sum is σ = 1694795203584. Its totient is φ = 1164987760464.

The previous prime is 1421044217717. The next prime is 1421044217777. The reversal of 1421044217761 is 1677124401241.

It is a cyclic number.

It is not a de Polignac number, because 1421044217761 - 2⁷ = 1421044217633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421044217701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1736106 + ... + 2419948.

It is an arithmetic number, because the mean of its divisors is an integer number (105924700224).

Almost surely, 2^{1421044217761} is an apocalyptic number.

It is an amenable number.

1421044217761 is a deficient number, since it is larger than the sum of its proper divisors (273750985823).

1421044217761 is a wasteful number, since it uses less digits than its factorization.

1421044217761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696780.

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 1421044217761 in words is "one trillion, four hundred twenty-one billion, forty-four million, two hundred seventeen thousand, seven hundred sixty-one".