1421551035993 has 16 divisors (see below), whose sum is σ = 2067754401216. Its totient is φ = 861527831040.

The previous prime is 1421551035991. The next prime is 1421551036013. The reversal of 1421551035993 is 3995301551241.

It is not a de Polignac number, because 1421551035993 - 2¹ = 1421551035991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1421551035991) 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, 1216605 + ... + 2079237.

It is an arithmetic number, because the mean of its divisors is an integer number (129234650076).

Almost surely, 2^{1421551035993} is an apocalyptic number.

It is an amenable number.

1421551035993 is a deficient number, since it is larger than the sum of its proper divisors (646203365223).

1421551035993 is a wasteful number, since it uses less digits than its factorization.

1421551035993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912584.

The product of its (nonzero) digits is 729000, while the sum is 48.

The spelling of 1421551035993 in words is "one trillion, four hundred twenty-one billion, five hundred fifty-one million, thirty-five thousand, nine hundred ninety-three".