743874441256 has 8 divisors (see below), whose sum is σ = 1394764577370. Its totient is φ = 371937220624.

The previous prime is 743874441217. The next prime is 743874441257. The reversal of 743874441256 is 652144478347.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 487949749156 + 255924692100 = 698534^2 + 505890^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 743874441197 and 743874441206.

It is not an unprimeable number, because it can be changed into a prime (743874441257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46492152571 + ... + 46492152586.

Almost surely, 2^743874441256 is an apocalyptic number.

It is an amenable number.

743874441256 is a deficient number, since it is larger than the sum of its proper divisors (650890136114).

743874441256 is a wasteful number, since it uses less digits than its factorization.

743874441256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92984305163 (or 92984305159 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 55.

The spelling of 743874441256 in words is "seven hundred forty-three billion, eight hundred seventy-four million, four hundred forty-one thousand, two hundred fifty-six".