744334757641 has 4 divisors (see below), whose sum is σ = 776697138432. Its totient is φ = 711972376852.

The previous prime is 744334757633. The next prime is 744334757657. The reversal of 744334757641 is 146757433447.

It is a happy number.

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 744334757641 - 2³ = 744334757633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (744334757611) 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, 16181190361 + ... + 16181190406.

It is an arithmetic number, because the mean of its divisors is an integer number (194174284608).

Almost surely, 2^744334757641 is an apocalyptic number.

It is an amenable number.

744334757641 is a deficient number, since it is larger than the sum of its proper divisors (32362380791).

744334757641 is a wasteful number, since it uses less digits than its factorization.

744334757641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32362380790.

The product of its digits is 23708160, while the sum is 55.

The spelling of 744334757641 in words is "seven hundred forty-four billion, three hundred thirty-four million, seven hundred fifty-seven thousand, six hundred forty-one".