755025421645 has 16 divisors (see below), whose sum is σ = 988413858432. Its totient is φ = 549099984960.

The previous prime is 755025421637. The next prime is 755025421651. The reversal of 755025421645 is 546124520557.

It is a happy number.

It is not a de Polignac number, because 755025421645 - 2³ = 755025421637 is a prime.

It is a super-3 number, since 3×755025421645³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 755025421595 and 755025421604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5815459 + ... + 5943871.

It is an arithmetic number, because the mean of its divisors is an integer number (61775866152).

Almost surely, 2^755025421645 is an apocalyptic number.

It is an amenable number.

755025421645 is a deficient number, since it is larger than the sum of its proper divisors (233388436787).

755025421645 is a wasteful number, since it uses less digits than its factorization.

755025421645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235332.

The product of its (nonzero) digits is 1680000, while the sum is 46.

The spelling of 755025421645 in words is "seven hundred fifty-five billion, twenty-five million, four hundred twenty-one thousand, six hundred forty-five".