31544321434434 has 48 divisors (see below), whose sum is σ = 68774629472640. Its totient is φ = 10448870823360.

The previous prime is 31544321434411. The next prime is 31544321434453. The reversal of 31544321434434 is 43443412344513.

31544321434434 is a `hidden beast` number, since 3 + 1 + 5 + 4 + 432 + 143 + 44 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 31544321434434.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9224094 + ... + 12172614.

It is an arithmetic number, because the mean of its divisors is an integer number (1432804780680).

Almost surely, 2^{31544321434434} is an apocalyptic number.

31544321434434 is an abundant number, since it is smaller than the sum of its proper divisors (37230308038206).

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

31544321434434 is a wasteful number, since it uses less digits than its factorization.

31544321434434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952255 (or 2952252 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 45.

Adding to 31544321434434 its reverse (43443412344513), we get a palindrome (74987733778947).

The spelling of 31544321434434 in words is "thirty-one trillion, five hundred forty-four billion, three hundred twenty-one million, four hundred thirty-four thousand, four hundred thirty-four".