2031678776640 has 112 divisors (see below), whose sum is σ = 6451950072960. Its totient is φ = 541665945600.

The previous prime is 2031678776639. The next prime is 2031678776663. The reversal of 2031678776640 is 466778761302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4346290 + ... + 4790990.

It is an arithmetic number, because the mean of its divisors is an integer number (57606697080).

Almost surely, 2^{2031678776640} is an apocalyptic number.

2031678776640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031678776640 is an abundant number, since it is smaller than the sum of its proper divisors (4420271296320).

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

2031678776640 is a wasteful number, since it uses less digits than its factorization.

2031678776640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449480 (or 449470 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 57.

The spelling of 2031678776640 in words is "two trillion, thirty-one billion, six hundred seventy-eight million, seven hundred seventy-six thousand, six hundred forty".