145685784642 has 16 divisors (see below), whose sum is σ = 291378139680. Its totient is φ = 48560833152.

The previous prime is 145685784637. The next prime is 145685784649. The reversal of 145685784642 is 246487586541.

It is not an unprimeable number, because it can be changed into a prime (145685784649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42609 + ... + 541467.

It is an arithmetic number, because the mean of its divisors is an integer number (18211133730).

Almost surely, 2^145685784642 is an apocalyptic number.

145685784642 is an abundant number, since it is smaller than the sum of its proper divisors (145692355038).

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

145685784642 is a wasteful number, since it uses less digits than its factorization.

145685784642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547537.

The product of its digits is 51609600, while the sum is 60.

The spelling of 145685784642 in words is "one hundred forty-five billion, six hundred eighty-five million, seven hundred eighty-four thousand, six hundred forty-two".