1766139942040 has 16 divisors (see below), whose sum is σ = 3973814869680. Its totient is φ = 706455976800.

The previous prime is 1766139942037. The next prime is 1766139942041. The reversal of 1766139942040 is 402499316671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1766139942041) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 22076749236 + ... + 22076749315.

It is an arithmetic number, because the mean of its divisors is an integer number (248363429355).

Almost surely, 2^{1766139942040} is an apocalyptic number.

1766139942040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1766139942040 is an abundant number, since it is smaller than the sum of its proper divisors (2207674927640).

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

1766139942040 is a wasteful number, since it uses less digits than its factorization.

1766139942040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44153498562 (or 44153498558 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 1766139942040 in words is "one trillion, seven hundred sixty-six billion, one hundred thirty-nine million, nine hundred forty-two thousand, forty".