40816240672 has 12 divisors (see below), whose sum is σ = 80356973886. Its totient is φ = 20408120320.

The previous prime is 40816240609. The next prime is 40816240687. The reversal of 40816240672 is 27604261804.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40142526736 + 673713936 = 200356^2 + 25956^2 .

It is a super-3 number, since 3×40816240672³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637753729 + ... + 637753792.

Almost surely, 2^40816240672 is an apocalyptic number.

It is an amenable number.

40816240672 is a deficient number, since it is larger than the sum of its proper divisors (39540733214).

40816240672 is a wasteful number, since it uses less digits than its factorization.

40816240672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275507531 (or 1275507523 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 40816240672 in words is "forty billion, eight hundred sixteen million, two hundred forty thousand, six hundred seventy-two".