42146500062421 has 4 divisors (see below), whose sum is σ = 42147814830732. Its totient is φ = 42145185294112.

The previous prime is 42146500062413. The next prime is 42146500062439. The reversal of 42146500062421 is 12426000564124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30415114700100 + 11731385362321 = 5514990^2 + 3425111^2 .

It is a cyclic number.

It is not a de Polignac number, because 42146500062421 - 2³ = 42146500062413 is a prime.

It is a super-3 number, since 3×42146500062421³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42146500062451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657336070 + ... + 657400183.

It is an arithmetic number, because the mean of its divisors is an integer number (10536953707683).

Almost surely, 2^{42146500062421} is an apocalyptic number.

It is an amenable number.

42146500062421 is a deficient number, since it is larger than the sum of its proper divisors (1314768311).

42146500062421 is a wasteful number, since it uses less digits than its factorization.

42146500062421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314768310.

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 42146500062421 in words is "forty-two trillion, one hundred forty-six billion, five hundred million, sixty-two thousand, four hundred twenty-one".