40781851926 has 16 divisors (see below), whose sum is σ = 81569979504. Its totient is φ = 13592904704.

The previous prime is 40781851849. The next prime is 40781851963. The reversal of 40781851926 is 62915818704.

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 7 ways as a sum of consecutive naturals, for example, 174795 + ... + 334838.

It is an arithmetic number, because the mean of its divisors is an integer number (5098123719).

Almost surely, 2^40781851926 is an apocalyptic number.

40781851926 is an abundant number, since it is smaller than the sum of its proper divisors (40788127578).

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

40781851926 is a wasteful number, since it uses less digits than its factorization.

40781851926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522975.

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 40781851926 in words is "forty billion, seven hundred eighty-one million, eight hundred fifty-one thousand, nine hundred twenty-six".