1421534736672 has 48 divisors (see below), whose sum is σ = 3733733203200. Its totient is φ = 473564973312.

The previous prime is 1421534736659. The next prime is 1421534736707. The reversal of 1421534736672 is 2766374351241.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1421534736672² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4210672 + ... + 4535727.

It is an arithmetic number, because the mean of its divisors is an integer number (77786108400).

Almost surely, 2^{1421534736672} is an apocalyptic number.

1421534736672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421534736672 is an abundant number, since it is smaller than the sum of its proper divisors (2312198466528).

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

1421534736672 is a wasteful number, since it uses less digits than its factorization.

1421534736672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748105 (or 8748097 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 51.

The spelling of 1421534736672 in words is "one trillion, four hundred twenty-one billion, five hundred thirty-four million, seven hundred thirty-six thousand, six hundred seventy-two".