1421688547349 has 4 divisors (see below), whose sum is σ = 1624786911264. Its totient is φ = 1218590183436.

The previous prime is 1421688547337. The next prime is 1421688547381. The reversal of 1421688547349 is 9437458861241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421688547349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1421688547291 and 1421688547300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421688517349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101549181947 + ... + 101549181960.

It is an arithmetic number, because the mean of its divisors is an integer number (406196727816).

Almost surely, 2^{1421688547349} is an apocalyptic number.

It is an amenable number.

1421688547349 is a deficient number, since it is larger than the sum of its proper divisors (203098363915).

1421688547349 is an equidigital number, since it uses as much as digits as its factorization.

1421688547349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203098363914.

The product of its digits is 46448640, while the sum is 62.

The spelling of 1421688547349 in words is "one trillion, four hundred twenty-one billion, six hundred eighty-eight million, five hundred forty-seven thousand, three hundred forty-nine".