539780451487 has 4 divisors (see below), whose sum is σ = 554369112376. Its totient is φ = 525191790600.

The previous prime is 539780451467. The next prime is 539780451517. The reversal of 539780451487 is 784154087935.

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 539780451487 - 2¹⁵ = 539780418719 is a prime.

It is a super-2 number, since 2×539780451487² (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 (539780451467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7294330389 + ... + 7294330462.

It is an arithmetic number, because the mean of its divisors is an integer number (138592278094).

Almost surely, 2^539780451487 is an apocalyptic number.

539780451487 is a deficient number, since it is larger than the sum of its proper divisors (14588660889).

539780451487 is a wasteful number, since it uses less digits than its factorization.

539780451487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14588660888.

The product of its (nonzero) digits is 33868800, while the sum is 61.

The spelling of 539780451487 in words is "five hundred thirty-nine billion, seven hundred eighty million, four hundred fifty-one thousand, four hundred eighty-seven".