40776782020249 has 4 divisors (see below), whose sum is σ = 44483762203920. Its totient is φ = 37069801836580.

The previous prime is 40776782020003. The next prime is 40776782020319. The reversal of 40776782020249 is 94202028767704.

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 not a de Polignac number, because 40776782020249 - 2¹⁵ = 40776781987481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40776782020193 and 40776782020202.

It is not an unprimeable number, because it can be changed into a prime (40776782024249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1853490091819 + ... + 1853490091840.

It is an arithmetic number, because the mean of its divisors is an integer number (11120940550980).

Almost surely, 2^{40776782020249} is an apocalyptic number.

It is an amenable number.

40776782020249 is a deficient number, since it is larger than the sum of its proper divisors (3706980183671).

40776782020249 is a wasteful number, since it uses less digits than its factorization.

40776782020249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706980183670.

The product of its (nonzero) digits is 18966528, while the sum is 58.

The spelling of 40776782020249 in words is "forty trillion, seven hundred seventy-six billion, seven hundred eighty-two million, twenty thousand, two hundred forty-nine".