744386484761 has 4 divisors (see below), whose sum is σ = 762542252724. Its totient is φ = 726230716800.

The previous prime is 744386484713. The next prime is 744386484763. The reversal of 744386484761 is 167484683447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 167484683447 = 7211 ⋅23226277.

It can be written as a sum of positive squares in 2 ways, for example, as 177256998361 + 567129486400 = 421019^2 + 753080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-744386484761 is a prime.

It is a super-2 number, since 2×744386484761² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 744386484694 and 744386484703.

It is not an unprimeable number, because it can be changed into a prime (744386484763) 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, 9077883920 + ... + 9077884001.

It is an arithmetic number, because the mean of its divisors is an integer number (190635563181).

Almost surely, 2^744386484761 is an apocalyptic number.

It is an amenable number.

744386484761 is a deficient number, since it is larger than the sum of its proper divisors (18155767963).

744386484761 is a wasteful number, since it uses less digits than its factorization.

744386484761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18155767962.

The product of its digits is 86704128, while the sum is 62.

The spelling of 744386484761 in words is "seven hundred forty-four billion, three hundred eighty-six million, four hundred eighty-four thousand, seven hundred sixty-one".