40777543757 has 8 divisors (see below), whose sum is σ = 41408821272. Its totient is φ = 40150728000.

The previous prime is 40777543733. The next prime is 40777543759. The reversal of 40777543757 is 75734577704.

It can be written as a sum of positive squares in 4 ways, for example, as 468549316 + 40308994441 = 21646^2 + 200771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40777543757 - 2²⁰ = 40776495181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40777543759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1097018 + ... + 1133579.

It is an arithmetic number, because the mean of its divisors is an integer number (5176102659).

Almost surely, 2^40777543757 is an apocalyptic number.

It is an amenable number.

40777543757 is a deficient number, since it is larger than the sum of its proper divisors (631277515).

40777543757 is a wasteful number, since it uses less digits than its factorization.

40777543757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230879.

The product of its (nonzero) digits is 20168400, while the sum is 56.

The spelling of 40777543757 in words is "forty billion, seven hundred seventy-seven million, five hundred forty-three thousand, seven hundred fifty-seven".