85430777385 has 16 divisors (see below), whose sum is σ = 136745162496. Its totient is φ = 45544441728.

The previous prime is 85430777353. The next prime is 85430777431. The reversal of 85430777385 is 58377703458.

It is not a de Polignac number, because 85430777385 - 2⁵ = 85430777353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1127044 + ... + 1200453.

It is an arithmetic number, because the mean of its divisors is an integer number (8546572656).

Almost surely, 2^85430777385 is an apocalyptic number.

It is an amenable number.

85430777385 is a deficient number, since it is larger than the sum of its proper divisors (51314385111).

85430777385 is a wasteful number, since it uses less digits than its factorization.

85430777385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329952.

The product of its (nonzero) digits is 19756800, while the sum is 57.

The spelling of 85430777385 in words is "eighty-five billion, four hundred thirty million, seven hundred seventy-seven thousand, three hundred eighty-five".