40778222761 has 8 divisors (see below), whose sum is σ = 42557616000. Its totient is φ = 38999365152.

The previous prime is 40778222741. The next prime is 40778222783. The reversal of 40778222761 is 16722287704.

40778222761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40778222761 - 2⁵ = 40778222729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40778222741) 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, 25740 + ... + 286738.

It is an arithmetic number, because the mean of its divisors is an integer number (5319702000).

Almost surely, 2^40778222761 is an apocalyptic number.

It is an amenable number.

40778222761 is a deficient number, since it is larger than the sum of its proper divisors (1779393239).

40778222761 is a wasteful number, since it uses less digits than its factorization.

40778222761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267815.

The product of its (nonzero) digits is 526848, while the sum is 46.

The spelling of 40778222761 in words is "forty billion, seven hundred seventy-eight million, two hundred twenty-two thousand, seven hundred sixty-one".