631346245017428 has 24 divisors (see below), whose sum is σ = 1141067547938304. Its totient is φ = 305337143916000.

The previous prime is 631346245017427. The next prime is 631346245017431. The reversal of 631346245017428 is 824710542643136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631346245017427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274540048 + ... + 1275035303.

It is an arithmetic number, because the mean of its divisors is an integer number (47544481164096).

Almost surely, 2^{631346245017428} is an apocalyptic number.

It is an amenable number.

631346245017428 is a deficient number, since it is larger than the sum of its proper divisors (509721302920876).

631346245017428 is a wasteful number, since it uses less digits than its factorization.

631346245017428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549577383 (or 2549577381 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 56.

The spelling of 631346245017428 in words is "six hundred thirty-one trillion, three hundred forty-six billion, two hundred forty-five million, seventeen thousand, four hundred twenty-eight".