42454551522415 has 16 divisors (see below), whose sum is σ = 51043627464480. Its totient is φ = 33898220236800.

The previous prime is 42454551522391. The next prime is 42454551522421. The reversal of 42454551522415 is 51422515545424.

It is a happy number.

It is not a de Polignac number, because 42454551522415 - 2⁷ = 42454551522287 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13520715 + ... + 16362115.

It is an arithmetic number, because the mean of its divisors is an integer number (3190226716530).

Almost surely, 2^{42454551522415} is an apocalyptic number.

42454551522415 is a deficient number, since it is larger than the sum of its proper divisors (8589075942065).

42454551522415 is a wasteful number, since it uses less digits than its factorization.

42454551522415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847162.

The product of its digits is 6400000, while the sum is 49.

The spelling of 42454551522415 in words is "forty-two trillion, four hundred fifty-four billion, five hundred fifty-one million, five hundred twenty-two thousand, four hundred fifteen".