45871287842 has 8 divisors (see below), whose sum is σ = 68975165100. Its totient is φ = 22879566144.

The previous prime is 45871287817. The next prime is 45871287851. The reversal of 45871287842 is 24878217854.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30160921561 + 15710366281 = 173669^2 + 125341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28037867 + ... + 28039502.

Almost surely, 2^45871287842 is an apocalyptic number.

45871287842 is a deficient number, since it is larger than the sum of its proper divisors (23103877258).

45871287842 is a wasteful number, since it uses less digits than its factorization.

45871287842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56077780.

The product of its digits is 8028160, while the sum is 56.

The spelling of 45871287842 in words is "forty-five billion, eight hundred seventy-one million, two hundred eighty-seven thousand, eight hundred forty-two".