511473201487 has 4 divisors (see below), whose sum is σ = 541559860416. Its totient is φ = 481386542560.

The previous prime is 511473201457. The next prime is 511473201529. The reversal of 511473201487 is 784102374115.

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

It is a cyclic number.

It is not a de Polignac number, because 511473201487 - 2²³ = 511464812879 is a prime.

It is a super-2 number, since 2×511473201487² (a number of 24 digits) contains 22 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 (511473201457) 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, 15043329439 + ... + 15043329472.

It is an arithmetic number, because the mean of its divisors is an integer number (135389965104).

Almost surely, 2^511473201487 is an apocalyptic number.

511473201487 is a deficient number, since it is larger than the sum of its proper divisors (30086658929).

511473201487 is a wasteful number, since it uses less digits than its factorization.

511473201487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30086658928.

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 511473201487 in words is "five hundred eleven billion, four hundred seventy-three million, two hundred one thousand, four hundred eighty-seven".