42451899705882 has 24 divisors (see below), whose sum is σ = 91995818462496. Its totient is φ = 14148063630216.

The previous prime is 42451899705871. The next prime is 42451899705899. The reversal of 42451899705882 is 28850799815424.

42451899705882 is a `hidden beast` number, since 4 + 2 + 451 + 8 + 9 + 97 + 0 + 5 + 8 + 82 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 42451899705882.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214031878 + ... + 214230129.

It is an arithmetic number, because the mean of its divisors is an integer number (3833159102604).

Almost surely, 2^{42451899705882} is an apocalyptic number.

42451899705882 is an abundant number, since it is smaller than the sum of its proper divisors (49543918756614).

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

42451899705882 is a wasteful number, since it uses less digits than its factorization.

42451899705882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428267522 (or 428267519 counting only the distinct ones).

The product of its (nonzero) digits is 464486400, while the sum is 72.

The spelling of 42451899705882 in words is "forty-two trillion, four hundred fifty-one billion, eight hundred ninety-nine million, seven hundred five thousand, eight hundred eighty-two".