85778130383 has 4 divisors (see below), whose sum is σ = 93576142248. Its totient is φ = 77980118520.

The previous prime is 85778130359. The next prime is 85778130391. The reversal of 85778130383 is 38303187758.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85778130383 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 (85778130583) 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, 3899005916 + ... + 3899005937.

It is an arithmetic number, because the mean of its divisors is an integer number (23394035562).

Almost surely, 2^85778130383 is an apocalyptic number.

85778130383 is a deficient number, since it is larger than the sum of its proper divisors (7798011865).

85778130383 is a wasteful number, since it uses less digits than its factorization.

85778130383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7798011864.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 85778130383 in words is "eighty-five billion, seven hundred seventy-eight million, one hundred thirty thousand, three hundred eighty-three".