40777836997 has 4 divisors (see below), whose sum is σ = 40780391680. Its totient is φ = 40775282316.

The previous prime is 40777836941. The next prime is 40777837021. The reversal of 40777836997 is 79963877704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40777836997 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 (40777836797) 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, 1253247 + ... + 1285372.

It is an arithmetic number, because the mean of its divisors is an integer number (10195097920).

Almost surely, 2^40777836997 is an apocalyptic number.

It is an amenable number.

40777836997 is a deficient number, since it is larger than the sum of its proper divisors (2554683).

40777836997 is a wasteful number, since it uses less digits than its factorization.

40777836997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554682.

The product of its (nonzero) digits is 112021056, while the sum is 67.

The spelling of 40777836997 in words is "forty billion, seven hundred seventy-seven million, eight hundred thirty-six thousand, nine hundred ninety-seven".