42251407172 has 12 divisors (see below), whose sum is σ = 79627652076. Its totient is φ = 19500649440.

The previous prime is 42251407141. The next prime is 42251407223. The reversal of 42251407172 is 27170415224.

It can be written as a sum of positive squares in 2 ways, for example, as 9052380736 + 33199026436 = 95144^2 + 182206^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406263479 + ... + 406263582.

It is an arithmetic number, because the mean of its divisors is an integer number (6635637673).

Almost surely, 2^42251407172 is an apocalyptic number.

It is an amenable number.

42251407172 is a deficient number, since it is larger than the sum of its proper divisors (37376244904).

42251407172 is a wasteful number, since it uses less digits than its factorization.

42251407172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812527078 (or 812527076 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The spelling of 42251407172 in words is "forty-two billion, two hundred fifty-one million, four hundred seven thousand, one hundred seventy-two".