42451899705883 has 4 divisors (see below), whose sum is σ = 44297634475728. Its totient is φ = 40606164936040.

The previous prime is 42451899705871. The next prime is 42451899705899. The reversal of 42451899705883 is 38850799815424.

42451899705883 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42451899705883 - 2¹⁷ = 42451899574811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42451899703883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922867384888 + ... + 922867384933.

It is an arithmetic number, because the mean of its divisors is an integer number (11074408618932).

Almost surely, 2^{42451899705883} is an apocalyptic number.

42451899705883 is a deficient number, since it is larger than the sum of its proper divisors (1845734769845).

42451899705883 is a wasteful number, since it uses less digits than its factorization.

42451899705883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845734769844.

The product of its (nonzero) digits is 696729600, while the sum is 73.

The spelling of 42451899705883 in words is "forty-two trillion, four hundred fifty-one billion, eight hundred ninety-nine million, seven hundred five thousand, eight hundred eighty-three".