1631075426680 has 256 divisors, whose sum is σ = 4420067097600. Its totient is φ = 529944145920.

The previous prime is 1631075426663. The next prime is 1631075426689. The reversal of 1631075426680 is 866245701361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1631075426689) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 279913927 + ... + 279919753.

It is an arithmetic number, because the mean of its divisors is an integer number (17265887100).

Almost surely, 2^{1631075426680} is an apocalyptic number.

1631075426680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1631075426680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2210033548800).

1631075426680 is an abundant number, since it is smaller than the sum of its proper divisors (2788991670920).

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

1631075426680 is a wasteful number, since it uses less digits than its factorization.

1631075426680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6582 (or 6578 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 1631075426680 in words is "one trillion, six hundred thirty-one billion, seventy-five million, four hundred twenty-six thousand, six hundred eighty".