285745717146 has 32 divisors (see below), whose sum is σ = 572068942848. Its totient is φ = 95152376880.

The previous prime is 285745717133. The next prime is 285745717157. The reversal of 285745717146 is 641717547582.

It is a super-2 number, since 2×285745717146² (a number of 24 digits) contains 22 as substring.

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, 30384081 + ... + 30393483.

It is an arithmetic number, because the mean of its divisors is an integer number (17877154464).

Almost surely, 2^285745717146 is an apocalyptic number.

285745717146 is an abundant number, since it is smaller than the sum of its proper divisors (286323225702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285745717146 is a wasteful number, since it uses less digits than its factorization.

285745717146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13986.

The product of its digits is 13171200, while the sum is 57.

The spelling of 285745717146 in words is "two hundred eighty-five billion, seven hundred forty-five million, seven hundred seventeen thousand, one hundred forty-six".