31439026900000 has 72 divisors (see below), whose sum is σ = 77364528861060. Its totient is φ = 12575610720000.

The previous prime is 31439026899971. The next prime is 31439026900003. The reversal of 31439026900000 is 962093413.

It can be written as a sum of positive squares in 6 ways, for example, as 3283735403664 + 28155291496336 = 1812108^2 + 5306156^2 .

It is a super-2 number, since 2×31439026900000² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31439026900003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157095135 + ... + 157295134.

Almost surely, 2^{31439026900000} is an apocalyptic number.

It is an amenable number.

31439026900000 is an abundant number, since it is smaller than the sum of its proper divisors (45925501961060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31439026900000 is an frugal number, since it uses more digits than its factorization.

31439026900000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314390304 (or 314390276 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

Adding to 31439026900000 its reverse (962093413), we get a palindrome (31439988993413).

The spelling of 31439026900000 in words is "thirty-one trillion, four hundred thirty-nine billion, twenty-six million, nine hundred thousand".