744401981031 has 4 divisors (see below), whose sum is σ = 992535974712. Its totient is φ = 496267987352.

The previous prime is 744401980981. The next prime is 744401981051. The reversal of 744401981031 is 130189104447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130189104447 = 3 ⋅43396368149.

It is a cyclic number.

It is not a de Polignac number, because 744401981031 - 2¹⁷ = 744401849959 is a prime.

It is a super-2 number, since 2×744401981031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744401981051) 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, 124066996836 + ... + 124066996841.

It is an arithmetic number, because the mean of its divisors is an integer number (248133993678).

Almost surely, 2^744401981031 is an apocalyptic number.

744401981031 is a deficient number, since it is larger than the sum of its proper divisors (248133993681).

744401981031 is a wasteful number, since it uses less digits than its factorization.

744401981031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248133993680.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 744401981031 in words is "seven hundred forty-four billion, four hundred one million, nine hundred eighty-one thousand, thirty-one".