31401042544 has 10 divisors (see below), whose sum is σ = 60839519960. Its totient is φ = 15700521264.

The previous prime is 31401042523. The next prime is 31401042581. The reversal of 31401042544 is 44524010413.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 981282564 + ... + 981282595.

It is an arithmetic number, because the mean of its divisors is an integer number (6083951996).

Almost surely, 2^31401042544 is an apocalyptic number.

It is an amenable number.

31401042544 is a deficient number, since it is larger than the sum of its proper divisors (29438477416).

31401042544 is a wasteful number, since it uses less digits than its factorization.

31401042544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962565167 (or 1962565161 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 31401042544 its reverse (44524010413), we get a palindrome (75925052957).

The spelling of 31401042544 in words is "thirty-one billion, four hundred one million, forty-two thousand, five hundred forty-four".