5494434748921 has 4 divisors (see below), whose sum is σ = 5783615525200. Its totient is φ = 5205253972644.

The previous prime is 5494434748897. The next prime is 5494434748973. The reversal of 5494434748921 is 1298474344945.

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 5494434748921 - 2⁹ = 5494434748409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5494434718921) 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, 144590388111 + ... + 144590388148.

It is an arithmetic number, because the mean of its divisors is an integer number (1445903881300).

Almost surely, 2^{5494434748921} is an apocalyptic number.

It is an amenable number.

5494434748921 is a deficient number, since it is larger than the sum of its proper divisors (289180776279).

5494434748921 is a wasteful number, since it uses less digits than its factorization.

5494434748921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289180776278.

The product of its digits is 139345920, while the sum is 64.

The spelling of 5494434748921 in words is "five trillion, four hundred ninety-four billion, four hundred thirty-four million, seven hundred forty-eight thousand, nine hundred twenty-one".