40289123568 has 40 divisors (see below), whose sum is σ = 104087548288. Its totient is φ = 13428764352.

The previous prime is 40289123561. The next prime is 40289123587. The reversal of 40289123568 is 86532198204.

40289123568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40289123561) 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, 1134855 + ... + 1169817.

Almost surely, 2^40289123568 is an apocalyptic number.

40289123568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40289123568 is an abundant number, since it is smaller than the sum of its proper divisors (63798424720).

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

40289123568 is a wasteful number, since it uses less digits than its factorization.

40289123568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58981 (or 58975 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 40289123568 in words is "forty billion, two hundred eighty-nine million, one hundred twenty-three thousand, five hundred sixty-eight".