42951087994 has 8 divisors (see below), whose sum is σ = 64428179508. Its totient is φ = 21475028160.

The previous prime is 42951087989. The next prime is 42951088009. The reversal of 42951087994 is 49978015924.

It can be written as a sum of positive squares in 2 ways, for example, as 32762810025 + 10188277969 = 181005^2 + 100937^2 .

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, 143727 + ... + 326434.

Almost surely, 2^42951087994 is an apocalyptic number.

42951087994 is a deficient number, since it is larger than the sum of its proper divisors (21477091514).

42951087994 is a wasteful number, since it uses less digits than its factorization.

42951087994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515840.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 42951087994 in words is "forty-two billion, nine hundred fifty-one million, eighty-seven thousand, nine hundred ninety-four".