285746615380 has 12 divisors (see below), whose sum is σ = 600067892340. Its totient is φ = 114298646144.

The previous prime is 285746615347. The next prime is 285746615417. The reversal of 285746615380 is 83516647582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111772536976 + 173974078404 = 334324^2 + 417102^2 .

It is a super-2 number, since 2×285746615380² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7143665365 + ... + 7143665404.

It is an arithmetic number, because the mean of its divisors is an integer number (50005657695).

Almost surely, 2^285746615380 is an apocalyptic number.

285746615380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285746615380 is an abundant number, since it is smaller than the sum of its proper divisors (314321276960).

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

285746615380 is a wasteful number, since it uses less digits than its factorization.

285746615380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14287330778 (or 14287330776 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 285746615380 in words is "two hundred eighty-five billion, seven hundred forty-six million, six hundred fifteen thousand, three hundred eighty".