531689527378 has 16 divisors (see below), whose sum is σ = 811187556480. Its totient is φ = 261323324496.

The previous prime is 531689527363. The next prime is 531689527409. The reversal of 531689527378 is 873725986135.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7376301 + ... + 7448032.

It is an arithmetic number, because the mean of its divisors is an integer number (50699222280).

Almost surely, 2^531689527378 is an apocalyptic number.

531689527378 is a deficient number, since it is larger than the sum of its proper divisors (279498029102).

531689527378 is a wasteful number, since it uses less digits than its factorization.

531689527378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14824641.

The product of its digits is 76204800, while the sum is 64.

The spelling of 531689527378 in words is "five hundred thirty-one billion, six hundred eighty-nine million, five hundred twenty-seven thousand, three hundred seventy-eight".