40778222742 has 32 divisors (see below), whose sum is σ = 91636466400. Its totient is φ = 13440011904.

The previous prime is 40778222741. The next prime is 40778222783. The reversal of 40778222742 is 24722287704.

40778222742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 4237623 + ... + 4247234.

It is an arithmetic number, because the mean of its divisors is an integer number (2863639575).

Almost surely, 2^40778222742 is an apocalyptic number.

40778222742 is an abundant number, since it is smaller than the sum of its proper divisors (50858243658).

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

40778222742 is a wasteful number, since it uses less digits than its factorization.

40778222742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8484957 (or 8484951 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 45.

The spelling of 40778222742 in words is "forty billion, seven hundred seventy-eight million, two hundred twenty-two thousand, seven hundred forty-two".