1421773153512 has 64 divisors (see below), whose sum is σ = 3559618897920. Its totient is φ = 473233215168.

The previous prime is 1421773153439. The next prime is 1421773153513. The reversal of 1421773153512 is 2153513771241.

It is not an unprimeable number, because it can be changed into a prime (1421773153513) 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, 120411913 + ... + 120423719.

It is an arithmetic number, because the mean of its divisors is an integer number (55619045280).

Almost surely, 2^{1421773153512} is an apocalyptic number.

1421773153512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421773153512 is an abundant number, since it is smaller than the sum of its proper divisors (2137845744408).

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

1421773153512 is a wasteful number, since it uses less digits than its factorization.

1421773153512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18710 (or 18706 counting only the distinct ones).

The product of its digits is 176400, while the sum is 42.

The spelling of 1421773153512 in words is "one trillion, four hundred twenty-one billion, seven hundred seventy-three million, one hundred fifty-three thousand, five hundred twelve".