1421733347655 has 16 divisors (see below), whose sum is σ = 2296858536960. Its totient is φ = 750896058528.

The previous prime is 1421733347569. The next prime is 1421733347677. The reversal of 1421733347655 is 5567433371241.

It is not a de Polignac number, because 1421733347655 - 2¹⁵ = 1421733314887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421733347598 and 1421733347607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460106335 + ... + 460109424.

It is an arithmetic number, because the mean of its divisors is an integer number (143553658560).

Almost surely, 2^{1421733347655} is an apocalyptic number.

1421733347655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1421733347655 is a deficient number, since it is larger than the sum of its proper divisors (875125189305).

1421733347655 is a wasteful number, since it uses less digits than its factorization.

1421733347655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920215870.

The product of its digits is 6350400, while the sum is 51.

The spelling of 1421733347655 in words is "one trillion, four hundred twenty-one billion, seven hundred thirty-three million, three hundred forty-seven thousand, six hundred fifty-five".