42361664443425 has 72 divisors (see below), whose sum is σ = 77624017780608. Its totient is φ = 22077556032000.

The previous prime is 42361664443393. The next prime is 42361664443543. The reversal of 42361664443425 is 52434446616324.

42361664443425 is a `hidden beast` number, since 4 + 2 + 3 + 6 + 166 + 44 + 434 + 2 + 5 = 666.

It is not a de Polignac number, because 42361664443425 - 2⁵ = 42361664443393 is a prime.

It is a super-2 number, since 2×42361664443425² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9928221 + ... + 13538570.

It is an arithmetic number, because the mean of its divisors is an integer number (1078111358064).

Almost surely, 2^{42361664443425} is an apocalyptic number.

42361664443425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42361664443425 is a deficient number, since it is larger than the sum of its proper divisors (35262353337183).

42361664443425 is a wasteful number, since it uses less digits than its factorization.

42361664443425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23466991 (or 23466983 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 54.

The spelling of 42361664443425 in words is "forty-two trillion, three hundred sixty-one billion, six hundred sixty-four million, four hundred forty-three thousand, four hundred twenty-five".