31461044322463 has 16 divisors (see below), whose sum is σ = 37619347493376. Its totient is φ = 25724994878880.

The previous prime is 31461044322439. The next prime is 31461044322479. The reversal of 31461044322463 is 36422344016413.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31461044322463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31461044322563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261883933 + ... + 262004038.

It is an arithmetic number, because the mean of its divisors is an integer number (2351209218336).

Almost surely, 2^{31461044322463} is an apocalyptic number.

31461044322463 is a deficient number, since it is larger than the sum of its proper divisors (6158303170913).

31461044322463 is a wasteful number, since it uses less digits than its factorization.

31461044322463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523888374.

The product of its (nonzero) digits is 995328, while the sum is 43.

Adding to 31461044322463 its reverse (36422344016413), we get a palindrome (67883388338876).

The spelling of 31461044322463 in words is "thirty-one trillion, four hundred sixty-one billion, forty-four million, three hundred twenty-two thousand, four hundred sixty-three".