42512668385490 has 48 divisors (see below), whose sum is σ = 110533784632128. Its totient is φ = 11336624715168.

The previous prime is 42512668385449. The next prime is 42512668385497. The reversal of 42512668385490 is 9458386621524.

42512668385490 is a `hidden beast` number, since 4 + 2 + 5 + 1 + 2 + 6 + 6 + 83 + 8 + 549 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (42512668385497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10462969 + ... + 13946291.

It is an arithmetic number, because the mean of its divisors is an integer number (2302787179836).

Almost surely, 2^{42512668385490} is an apocalyptic number.

42512668385490 is an abundant number, since it is smaller than the sum of its proper divisors (68021116246638).

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

42512668385490 is a wasteful number, since it uses less digits than its factorization.

42512668385490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618943 (or 3618940 counting only the distinct ones).

The product of its (nonzero) digits is 99532800, while the sum is 63.

The spelling of 42512668385490 in words is "forty-two trillion, five hundred twelve billion, six hundred sixty-eight million, three hundred eighty-five thousand, four hundred ninety".