42254156465 has 16 divisors (see below), whose sum is σ = 50959358928. Its totient is φ = 33634139136.

The previous prime is 42254156447. The next prime is 42254156479. The reversal of 42254156465 is 56465145224.

It can be written as a sum of positive squares in 8 ways, for example, as 30320560384 + 11933596081 = 174128^2 + 109241^2 .

It is a cyclic number.

It is not a de Polignac number, because 42254156465 - 2⁶ = 42254156401 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 847469 + ... + 895941.

It is an arithmetic number, because the mean of its divisors is an integer number (3184959933).

Almost surely, 2^42254156465 is an apocalyptic number.

It is an amenable number.

42254156465 is a deficient number, since it is larger than the sum of its proper divisors (8705202463).

42254156465 is a wasteful number, since it uses less digits than its factorization.

42254156465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49348.

The product of its digits is 1152000, while the sum is 44.

The spelling of 42254156465 in words is "forty-two billion, two hundred fifty-four million, one hundred fifty-six thousand, four hundred sixty-five".