1214355657799 has 4 divisors (see below), whose sum is σ = 1222397748400. Its totient is φ = 1206313567200.

The previous prime is 1214355657797. The next prime is 1214355657857. The reversal of 1214355657799 is 9977565534121.

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 1214355657799 - 2¹ = 1214355657797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214355657799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214355657791) 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, 4021045074 + ... + 4021045375.

It is an arithmetic number, because the mean of its divisors is an integer number (305599437100).

Almost surely, 2^{1214355657799} is an apocalyptic number.

1214355657799 is a deficient number, since it is larger than the sum of its proper divisors (8042090601).

1214355657799 is an equidigital number, since it uses as much as digits as its factorization.

1214355657799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8042090600.

The product of its digits is 71442000, while the sum is 64.

The spelling of 1214355657799 in words is "one trillion, two hundred fourteen billion, three hundred fifty-five million, six hundred fifty-seven thousand, seven hundred ninety-nine".