40278112698369 has 48 divisors (see below), whose sum is σ = 66514584643584. Its totient is φ = 21228336792000.

The previous prime is 40278112698367. The next prime is 40278112698401. The reversal of 40278112698369 is 96389621187204.

It is a happy number.

It is not a de Polignac number, because 40278112698369 - 2¹ = 40278112698367 is a prime.

It is a super-2 number, since 2×40278112698369² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40278112698367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 240907 + ... + 8978544.

It is an arithmetic number, because the mean of its divisors is an integer number (1385720513408).

Almost surely, 2^{40278112698369} is an apocalyptic number.

It is an amenable number.

40278112698369 is a deficient number, since it is larger than the sum of its proper divisors (26236471945215).

40278112698369 is a wasteful number, since it uses less digits than its factorization.

40278112698369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9220718 (or 9220705 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 66.

The spelling of 40278112698369 in words is "forty trillion, two hundred seventy-eight billion, one hundred twelve million, six hundred ninety-eight thousand, three hundred sixty-nine".