785405050005 has 32 divisors (see below), whose sum is σ = 1329502204800. Its totient is φ = 394821810432.

The previous prime is 785405049991. The next prime is 785405050057. The reversal of 785405050005 is 500050504587.

It is not a de Polignac number, because 785405050005 - 2³⁵ = 751045311637 is a prime.

It is a super-2 number, since 2×785405050005² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6938290 + ... + 7050579.

It is an arithmetic number, because the mean of its divisors is an integer number (41546943900).

Almost surely, 2^785405050005 is an apocalyptic number.

It is an amenable number.

785405050005 is a deficient number, since it is larger than the sum of its proper divisors (544097154795).

785405050005 is a wasteful number, since it uses less digits than its factorization.

785405050005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13989093.

The product of its (nonzero) digits is 140000, while the sum is 39.

The spelling of 785405050005 in words is "seven hundred eighty-five billion, four hundred five million, fifty thousand, five".