531695378948 has 12 divisors (see below), whose sum is σ = 962551979340. Its totient is φ = 256680527712.

The previous prime is 531695378941. The next prime is 531695378989. The reversal of 531695378948 is 849873596135.

It can be written as a sum of positive squares in 2 ways, for example, as 191220794944 + 340474584004 = 437288^2 + 583502^2 .

It is a super-3 number, since 3×531695378948³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (531695378941) 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, 2291790311 + ... + 2291790542.

It is an arithmetic number, because the mean of its divisors is an integer number (80212664945).

Almost surely, 2^531695378948 is an apocalyptic number.

531695378948 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

531695378948 is a deficient number, since it is larger than the sum of its proper divisors (430856600392).

531695378948 is a wasteful number, since it uses less digits than its factorization.

531695378948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583580886 (or 4583580884 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 68.

The spelling of 531695378948 in words is "five hundred thirty-one billion, six hundred ninety-five million, three hundred seventy-eight thousand, nine hundred forty-eight".