375561665747 has 8 divisors (see below), whose sum is σ = 397746320400. Its totient is φ = 353387321344.

The previous prime is 375561665741. The next prime is 375561665753. The reversal of 375561665747 is 747566165573.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (375561665741) and next prime (375561665753).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 375561665747 - 2⁸ = 375561665491 is a prime.

It is a super-4 number, since 4×375561665747⁴ (a number of 47 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 375561665747.

It is not an unprimeable number, because it can be changed into a prime (375561665741) 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, 2502497 + ... + 2648322.

It is an arithmetic number, because the mean of its divisors is an integer number (49718290050).

Almost surely, 2^375561665747 is an apocalyptic number.

375561665747 is a deficient number, since it is larger than the sum of its proper divisors (22184654653).

375561665747 is a wasteful number, since it uses less digits than its factorization.

375561665747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155125.

The product of its digits is 111132000, while the sum is 62.

The spelling of 375561665747 in words is "three hundred seventy-five billion, five hundred sixty-one million, six hundred sixty-five thousand, seven hundred forty-seven".