40012292921766 has 128 divisors (see below), whose sum is σ = 91318195777536. Its totient is φ = 11569388561280.

The previous prime is 40012292921753. The next prime is 40012292921827. The reversal of 40012292921766 is 66712929221004.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3100039485 + ... + 3100052391.

It is an arithmetic number, because the mean of its divisors is an integer number (713423404512).

Almost surely, 2^{40012292921766} is an apocalyptic number.

40012292921766 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 40012292921766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45659097888768).

40012292921766 is an abundant number, since it is smaller than the sum of its proper divisors (51305902855770).

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

40012292921766 is a wasteful number, since it uses less digits than its factorization.

40012292921766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17786.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 40012292921766 in words is "forty trillion, twelve billion, two hundred ninety-two million, nine hundred twenty-one thousand, seven hundred sixty-six".