46388981378 has 8 divisors (see below), whose sum is σ = 69588559740. Its totient is φ = 23192794800.

The previous prime is 46388981369. The next prime is 46388981389. The reversal of 46388981378 is 87318988364.

It can be written as a sum of positive squares in 2 ways, for example, as 40464138649 + 5924842729 = 201157^2 + 76973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813473 + ... + 868628.

Almost surely, 2^46388981378 is an apocalyptic number.

46388981378 is a deficient number, since it is larger than the sum of its proper divisors (23199578362).

46388981378 is a wasteful number, since it uses less digits than its factorization.

46388981378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695892.

The product of its digits is 55738368, while the sum is 65.

The spelling of 46388981378 in words is "forty-six billion, three hundred eighty-eight million, nine hundred eighty-one thousand, three hundred seventy-eight".