40778155630 has 8 divisors (see below), whose sum is σ = 73400680152. Its totient is φ = 16311262248.

The previous prime is 40778155619. The next prime is 40778155763. The reversal of 40778155630 is 3655187704.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2038907772 + ... + 2038907791.

It is an arithmetic number, because the mean of its divisors is an integer number (9175085019).

Almost surely, 2^40778155630 is an apocalyptic number.

40778155630 is a deficient number, since it is larger than the sum of its proper divisors (32622524522).

40778155630 is a wasteful number, since it uses less digits than its factorization.

40778155630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077815570.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 40778155630 in words is "forty billion, seven hundred seventy-eight million, one hundred fifty-five thousand, six hundred thirty".