7825036643444 has 24 divisors (see below), whose sum is σ = 13829193251328. Its totient is φ = 3873851920800.

The previous prime is 7825036643441. The next prime is 7825036643461. The reversal of 7825036643444 is 4443466305287.

It is a super-2 number, since 2×7825036643444² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7825036643444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7825036643441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683069 + ... + 4014555.

It is an arithmetic number, because the mean of its divisors is an integer number (576216385472).

Almost surely, 2^{7825036643444} is an apocalyptic number.

It is an amenable number.

7825036643444 is a deficient number, since it is larger than the sum of its proper divisors (6004156607884).

7825036643444 is a wasteful number, since it uses less digits than its factorization.

7825036643444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337295 (or 3337293 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 56.

The spelling of 7825036643444 in words is "seven trillion, eight hundred twenty-five billion, thirty-six million, six hundred forty-three thousand, four hundred forty-four".