40378368832 has 14 divisors (see below), whose sum is σ = 80125825778. Its totient is φ = 20189184384.

The previous prime is 40378368829. The next prime is 40378368889. The reversal of 40378368832 is 23886387304.

It can be written as a sum of positive squares in only one way, i.e., 40343132736 + 35236096 = 200856^2 + 5936^2 .

It is a super-3 number, since 3×40378368832³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40378368832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315455943 + ... + 315456070.

Almost surely, 2^40378368832 is an apocalyptic number.

It is an amenable number.

40378368832 is a deficient number, since it is larger than the sum of its proper divisors (39747456946).

40378368832 is an equidigital number, since it uses as much as digits as its factorization.

40378368832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630912025 (or 630912015 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 52.

The spelling of 40378368832 in words is "forty billion, three hundred seventy-eight million, three hundred sixty-eight thousand, eight hundred thirty-two".