75038561641 has 4 divisors (see below), whose sum is σ = 75044496384. Its totient is φ = 75032626900.

The previous prime is 75038561567. The next prime is 75038561671. The reversal of 75038561641 is 14616583057.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75038561641 - 2¹¹ = 75038559593 is a prime.

It is a super-2 number, since 2×75038561641² (a number of 23 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 = 75038561591 and 75038561600.

It is not an unprimeable number, because it can be changed into a prime (75038561671) 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, 2948365 + ... + 2973706.

It is an arithmetic number, because the mean of its divisors is an integer number (18761124096).

Almost surely, 2^75038561641 is an apocalyptic number.

It is an amenable number.

75038561641 is a deficient number, since it is larger than the sum of its proper divisors (5934743).

75038561641 is a wasteful number, since it uses less digits than its factorization.

75038561641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5934742.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 75038561641 in words is "seventy-five billion, thirty-eight million, five hundred sixty-one thousand, six hundred forty-one".