31542105663 has 12 divisors (see below), whose sum is σ = 46620373800. Its totient is φ = 20539045296.

The previous prime is 31542105653. The next prime is 31542105697. The reversal of 31542105663 is 36650124513.

31542105663 is a `hidden beast` number, since 3 + 1 + 542 + 1 + 0 + 56 + 63 = 666.

It is not a de Polignac number, because 31542105663 - 2¹² = 31542101567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31542105653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40751688 + ... + 40752461.

It is an arithmetic number, because the mean of its divisors is an integer number (3885031150).

Almost surely, 2^31542105663 is an apocalyptic number.

31542105663 is a deficient number, since it is larger than the sum of its proper divisors (15078268137).

31542105663 is a wasteful number, since it uses less digits than its factorization.

31542105663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81504198 (or 81504195 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 31542105663 in words is "thirty-one billion, five hundred forty-two million, one hundred five thousand, six hundred sixty-three".