1362749587921 has 4 divisors (see below), whose sum is σ = 1369597576000. Its totient is φ = 1355901599844.

The previous prime is 1362749587879. The next prime is 1362749587931. The reversal of 1362749587921 is 1297859472631.

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 not a de Polignac number, because 1362749587921 - 2²⁵ = 1362716033489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1362749587931) 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, 3423993741 + ... + 3423994138.

It is an arithmetic number, because the mean of its divisors is an integer number (342399394000).

Almost surely, 2^{1362749587921} is an apocalyptic number.

It is an amenable number.

1362749587921 is a deficient number, since it is larger than the sum of its proper divisors (6847988079).

1362749587921 is an equidigital number, since it uses as much as digits as its factorization.

1362749587921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847988078.

The product of its digits is 45722880, while the sum is 64.

The spelling of 1362749587921 in words is "one trillion, three hundred sixty-two billion, seven hundred forty-nine million, five hundred eighty-seven thousand, nine hundred twenty-one".