1421127641772 has 36 divisors (see below), whose sum is σ = 3592368537576. Its totient is φ = 473699499840.

The previous prime is 1421127641767. The next prime is 1421127641819. The reversal of 1421127641772 is 2771467211241.

1421127641772 is a `hidden beast` number, since 1 + 42 + 1 + 127 + 6 + 417 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1497663 + ... + 2255049.

Almost surely, 2^{1421127641772} is an apocalyptic number.

1421127641772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421127641772 is an abundant number, since it is smaller than the sum of its proper divisors (2171240895804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421127641772 is a wasteful number, since it uses less digits than its factorization.

1421127641772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809518 (or 809513 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The spelling of 1421127641772 in words is "one trillion, four hundred twenty-one billion, one hundred twenty-seven million, six hundred forty-one thousand, seven hundred seventy-two".