1865425610340 has 48 divisors (see below), whose sum is σ = 5803546344960. Its totient is φ = 497446829280.

The previous prime is 1865425610287. The next prime is 1865425610351. The reversal of 1865425610340 is 430165245681.

1865425610340 is a `hidden beast` number, since 1 + 8 + 6 + 5 + 4 + 25 + 610 + 3 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1727245396 + ... + 1727246475.

It is an arithmetic number, because the mean of its divisors is an integer number (120907215520).

Almost surely, 2^{1865425610340} is an apocalyptic number.

1865425610340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1865425610340 is an abundant number, since it is smaller than the sum of its proper divisors (3938120734620).

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

1865425610340 is a wasteful number, since it uses less digits than its factorization.

1865425610340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454491889 (or 3454491881 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 1865425610340 in words is "one trillion, eight hundred sixty-five billion, four hundred twenty-five million, six hundred ten thousand, three hundred forty".