40007073648 has 40 divisors (see below), whose sum is σ = 103359741696. Its totient is φ = 13334641600.

The previous prime is 40007073599. The next prime is 40007073649. The reversal of 40007073648 is 84637070004.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40007073649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802903 + ... + 851273.

Almost surely, 2^40007073648 is an apocalyptic number.

40007073648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40007073648 is an abundant number, since it is smaller than the sum of its proper divisors (63352668048).

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

40007073648 is a wasteful number, since it uses less digits than its factorization.

40007073648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65613 (or 65607 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 40007073648 in words is "forty billion, seven million, seventy-three thousand, six hundred forty-eight".