1342643640215 has 4 divisors (see below), whose sum is σ = 1611172368264. Its totient is φ = 1074114912168.

The previous prime is 1342643640157. The next prime is 1342643640223. The reversal of 1342643640215 is 5120463462431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1342643640215 - 2²⁰ = 1342642591639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134264364017 + ... + 134264364026.

It is an arithmetic number, because the mean of its divisors is an integer number (402793092066).

Almost surely, 2^{1342643640215} is an apocalyptic number.

1342643640215 is a deficient number, since it is larger than the sum of its proper divisors (268528728049).

1342643640215 is an equidigital number, since it uses as much as digits as its factorization.

1342643640215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268528728048.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 1342643640215 in words is "one trillion, three hundred forty-two billion, six hundred forty-three million, six hundred forty thousand, two hundred fifteen".