40770777444 has 12 divisors (see below), whose sum is σ = 95131814064. Its totient is φ = 13590259144.

The previous prime is 40770777419. The next prime is 40770777449. The reversal of 40770777444 is 44477707704.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (40770777449) 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, 1698782382 + ... + 1698782405.

It is an arithmetic number, because the mean of its divisors is an integer number (7927651172).

Almost surely, 2^40770777444 is an apocalyptic number.

It is an amenable number.

40770777444 is an abundant number, since it is smaller than the sum of its proper divisors (54361036620).

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

40770777444 is a wasteful number, since it uses less digits than its factorization.

40770777444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397564794 (or 3397564792 counting only the distinct ones).

The product of its (nonzero) digits is 4302592, while the sum is 51.

The spelling of 40770777444 in words is "forty billion, seven hundred seventy million, seven hundred seventy-seven thousand, four hundred forty-four".