75540427379 has 2 divisors, whose sum is σ = 75540427380. Its totient is φ = 75540427378.

The previous prime is 75540427363. The next prime is 75540427423. The reversal of 75540427379 is 97372404557.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75540427379 - 2⁴ = 75540427363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75540427379.

It is not a weakly prime, because it can be changed into another prime (75540427579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37770213689 + 37770213690.

It is an arithmetic number, because the mean of its divisors is an integer number (37770213690).

Almost surely, 2^75540427379 is an apocalyptic number.

75540427379 is a deficient number, since it is larger than the sum of its proper divisors (1).

75540427379 is an equidigital number, since it uses as much as digits as its factorization.

75540427379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7408800, while the sum is 53.

The spelling of 75540427379 in words is "seventy-five billion, five hundred forty million, four hundred twenty-seven thousand, three hundred seventy-nine".