75391970623 has 4 divisors (see below), whose sum is σ = 75392968248. Its totient is φ = 75390973000.

The previous prime is 75391970603. The next prime is 75391970627. The reversal of 75391970623 is 32607919357.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32607919357 = 13 ⋅2508301489.

It is a cyclic number.

It is not a de Polignac number, because 75391970623 - 2¹³ = 75391962431 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 (75391970627) 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, 375253 + ... + 539998.

It is an arithmetic number, because the mean of its divisors is an integer number (18848242062).

Almost surely, 2^75391970623 is an apocalyptic number.

75391970623 is a deficient number, since it is larger than the sum of its proper divisors (997625).

75391970623 is an equidigital number, since it uses as much as digits as its factorization.

75391970623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997624.

The product of its (nonzero) digits is 2143260, while the sum is 52.

The spelling of 75391970623 in words is "seventy-five billion, three hundred ninety-one million, nine hundred seventy thousand, six hundred twenty-three".