31355379441 has 18 divisors (see below), whose sum is σ = 47345905698. Its totient is φ = 19994731680.

The previous prime is 31355379437. The next prime is 31355379463. The reversal of 31355379441 is 14497355313.

31355379441 is a `hidden beast` number, since 3 + 1 + 3 + 553 + 7 + 94 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25383181041 + 5972198400 = 159321^2 + 77280^2 .

It is not a de Polignac number, because 31355379441 - 2² = 31355379437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31355379541) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3288180 + ... + 3297701.

Almost surely, 2^31355379441 is an apocalyptic number.

It is an amenable number.

31355379441 is a deficient number, since it is larger than the sum of its proper divisors (15990526257).

31355379441 is a wasteful number, since it uses less digits than its factorization.

31355379441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6585933 (or 6585907 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The spelling of 31355379441 in words is "thirty-one billion, three hundred fifty-five million, three hundred seventy-nine thousand, four hundred forty-one".