75420774311 has 4 divisors (see below), whose sum is σ = 75733723824. Its totient is φ = 75107824800.

The previous prime is 75420774223. The next prime is 75420774343. The reversal of 75420774311 is 11347702457.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75420774311 - 2¹⁴ = 75420757927 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 (75420770311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156474395 + ... + 156474876.

It is an arithmetic number, because the mean of its divisors is an integer number (18933430956).

Almost surely, 2^75420774311 is an apocalyptic number.

75420774311 is a deficient number, since it is larger than the sum of its proper divisors (312949513).

75420774311 is a wasteful number, since it uses less digits than its factorization.

75420774311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312949512.

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 75420774311 in words is "seventy-five billion, four hundred twenty million, seven hundred seventy-four thousand, three hundred eleven".