42015461456 has 20 divisors (see below), whose sum is σ = 81429675072. Its totient is φ = 21001351776.

The previous prime is 42015461437. The next prime is 42015461479. The reversal of 42015461456 is 65416451024.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344120 + ... + 449943.

Almost surely, 2^42015461456 is an apocalyptic number.

It is an amenable number.

42015461456 is a deficient number, since it is larger than the sum of its proper divisors (39414213616).

42015461456 is a wasteful number, since it uses less digits than its factorization.

42015461456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797378 (or 797372 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 42015461456 in words is "forty-two billion, fifteen million, four hundred sixty-one thousand, four hundred fifty-six".