521071467457142 has 48 divisors (see below), whose sum is σ = 911728310676480. Its totient is φ = 222699462974352.

The previous prime is 521071467457103. The next prime is 521071467457153. The reversal of 521071467457142 is 241754764170125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1006177709 + ... + 1006695447.

It is an arithmetic number, because the mean of its divisors is an integer number (18994339805760).

Almost surely, 2^{521071467457142} is an apocalyptic number.

521071467457142 is a deficient number, since it is larger than the sum of its proper divisors (390656843219338).

521071467457142 is a wasteful number, since it uses less digits than its factorization.

521071467457142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546105 (or 546098 counting only the distinct ones).

The product of its (nonzero) digits is 13171200, while the sum is 56.

The spelling of 521071467457142 in words is "five hundred twenty-one trillion, seventy-one billion, four hundred sixty-seven million, four hundred fifty-seven thousand, one hundred forty-two".