75745047251 has 8 divisors (see below), whose sum is σ = 79259512704. Its totient is φ = 72297524160.

The previous prime is 75745047223. The next prime is 75745047271. The reversal of 75745047251 is 15274054757.

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 75745047251 - 2¹⁸ = 75744785107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75745047196 and 75745047205.

It is not an unprimeable number, because it can be changed into a prime (75745047271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16733276 + ... + 16737801.

It is an arithmetic number, because the mean of its divisors is an integer number (9907439088).

Almost surely, 2^75745047251 is an apocalyptic number.

75745047251 is a deficient number, since it is larger than the sum of its proper divisors (3514465453).

75745047251 is a wasteful number, since it uses less digits than its factorization.

75745047251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33471181.

The product of its (nonzero) digits is 1372000, while the sum is 47.

The spelling of 75745047251 in words is "seventy-five billion, seven hundred forty-five million, forty-seven thousand, two hundred fifty-one".