31448572029 has 16 divisors (see below), whose sum is σ = 53246259840. Its totient is φ = 17970612480.

The previous prime is 31448572013. The next prime is 31448572049. The reversal of 31448572029 is 92027584413.

31448572029 is a `hidden beast` number, since 3 + 14 + 48 + 572 + 0 + 29 = 666.

It is not a de Polignac number, because 31448572029 - 2⁴ = 31448572013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31448572009) 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 15 ways as a sum of consecutive naturals, for example, 83197092 + ... + 83197469.

It is an arithmetic number, because the mean of its divisors is an integer number (3327891240).

Almost surely, 2^31448572029 is an apocalyptic number.

It is an amenable number.

31448572029 is a deficient number, since it is larger than the sum of its proper divisors (21797687811).

31448572029 is a wasteful number, since it uses less digits than its factorization.

31448572029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166394577 (or 166394571 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 31448572029 in words is "thirty-one billion, four hundred forty-eight million, five hundred seventy-two thousand, twenty-nine".