521141212545 has 16 divisors (see below), whose sum is σ = 840191026752. Its totient is φ = 275820284480.

The previous prime is 521141212507. The next prime is 521141212577. The reversal of 521141212545 is 545212141125.

It is not a de Polignac number, because 521141212545 - 2¹⁵ = 521141179777 is a prime.

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, 132603942 + ... + 132607871.

It is an arithmetic number, because the mean of its divisors is an integer number (52511939172).

Almost surely, 2^521141212545 is an apocalyptic number.

It is an amenable number.

521141212545 is a deficient number, since it is larger than the sum of its proper divisors (319049814207).

521141212545 is a wasteful number, since it uses less digits than its factorization.

521141212545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265211952.

The product of its digits is 16000, while the sum is 33.

The spelling of 521141212545 in words is "five hundred twenty-one billion, one hundred forty-one million, two hundred twelve thousand, five hundred forty-five".