75745309079 has 8 divisors (see below), whose sum is σ = 82636975488. Its totient is φ = 68854597560.

The previous prime is 75745309043. The next prime is 75745309097. The reversal of 75745309079 is 97090354757.

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 75745309079 - 2⁸ = 75745308823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75745309279) 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, 67517 + ... + 395030.

It is an arithmetic number, because the mean of its divisors is an integer number (10329621936).

Almost surely, 2^75745309079 is an apocalyptic number.

75745309079 is a deficient number, since it is larger than the sum of its proper divisors (6891666409).

75745309079 is a wasteful number, since it uses less digits than its factorization.

75745309079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477445.

The product of its (nonzero) digits is 8334900, while the sum is 56.

The spelling of 75745309079 in words is "seventy-five billion, seven hundred forty-five million, three hundred nine thousand, seventy-nine".