285134277352 has 8 divisors (see below), whose sum is σ = 534626770050. Its totient is φ = 142567138672.

The previous prime is 285134277331. The next prime is 285134277353. The reversal of 285134277352 is 253772431582.

It can be written as a sum of positive squares in only one way, i.e., 192234894916 + 92899382436 = 438446^2 + 304794^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×285134277352² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 285134277296 and 285134277305.

It is not an unprimeable number, because it can be changed into a prime (285134277353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17820892327 + ... + 17820892342.

Almost surely, 2^285134277352 is an apocalyptic number.

It is an amenable number.

285134277352 is a deficient number, since it is larger than the sum of its proper divisors (249492492698).

285134277352 is a wasteful number, since it uses less digits than its factorization.

285134277352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35641784675 (or 35641784671 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 49.

The spelling of 285134277352 in words is "two hundred eighty-five billion, one hundred thirty-four million, two hundred seventy-seven thousand, three hundred fifty-two".