40028668646680 has 64 divisors (see below), whose sum is σ = 102931530166080. Its totient is φ = 13724025907200.

The previous prime is 40028668646651. The next prime is 40028668646711. The reversal of 40028668646680 is 8664686682004.

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, 54278820 + ... + 55011340.

It is an arithmetic number, because the mean of its divisors is an integer number (1608305158845).

Almost surely, 2^{40028668646680} is an apocalyptic number.

40028668646680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40028668646680 is an abundant number, since it is smaller than the sum of its proper divisors (62902861519400).

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

40028668646680 is a wasteful number, since it uses less digits than its factorization.

40028668646680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927700 (or 927696 counting only the distinct ones).

The product of its (nonzero) digits is 127401984, while the sum is 64.

The spelling of 40028668646680 in words is "forty trillion, twenty-eight billion, six hundred sixty-eight million, six hundred forty-six thousand, six hundred eighty".