42409612908945 has 32 divisors (see below), whose sum is σ = 75407533843200. Its totient is φ = 22614660283392.

The previous prime is 42409612908919. The next prime is 42409612908979. The reversal of 42409612908945 is 54980921690424.

42409612908945 is a `hidden beast` number, since 4 + 2 + 4 + 0 + 9 + 612 + 9 + 0 + 8 + 9 + 4 + 5 = 666.

It is not a de Polignac number, because 42409612908945 - 2²⁴ = 42409596131729 is a prime.

It is a super-2 number, since 2×42409612908945² (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 31 ways as a sum of consecutive naturals, for example, 25581805 + ... + 27189114.

It is an arithmetic number, because the mean of its divisors is an integer number (2356485432600).

Almost surely, 2^{42409612908945} is an apocalyptic number.

42409612908945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42409612908945 is a deficient number, since it is larger than the sum of its proper divisors (32997920934255).

42409612908945 is a wasteful number, since it uses less digits than its factorization.

42409612908945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52776886 (or 52776880 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 63.

The spelling of 42409612908945 in words is "forty-two trillion, four hundred nine billion, six hundred twelve million, nine hundred eight thousand, nine hundred forty-five".