741845519821 has 4 divisors (see below), whose sum is σ = 847823451232. Its totient is φ = 635867588412.

The previous prime is 741845519749. The next prime is 741845519827. The reversal of 741845519821 is 128915548147.

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 de Polignac number, because none of the positive numbers 2^k-741845519821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (741845519827) 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, 52988965695 + ... + 52988965708.

It is an arithmetic number, because the mean of its divisors is an integer number (211955862808).

Almost surely, 2^741845519821 is an apocalyptic number.

It is an amenable number.

741845519821 is a deficient number, since it is larger than the sum of its proper divisors (105977931411).

741845519821 is a wasteful number, since it uses less digits than its factorization.

741845519821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105977931410.

The product of its digits is 3225600, while the sum is 55.

It can be divided in two parts, 741845 and 519821, that added together give a triangular number (1261666 = T₁₅₈₈).

The spelling of 741845519821 in words is "seven hundred forty-one billion, eight hundred forty-five million, five hundred nineteen thousand, eight hundred twenty-one".