3917915139042 has 24 divisors (see below), whose sum is σ = 8494233436416. Its totient is φ = 1305138281976.

The previous prime is 3917915138999. The next prime is 3917915139091. The reversal of 3917915139042 is 2409315197193.

3917915139042 is a `hidden beast` number, since 39 + 1 + 7 + 9 + 1 + 513 + 90 + 4 + 2 = 666.

3917915139042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3917915139042.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69423598 + ... + 69480009.

It is an arithmetic number, because the mean of its divisors is an integer number (353926393184).

Almost surely, 2^{3917915139042} is an apocalyptic number.

3917915139042 is an abundant number, since it is smaller than the sum of its proper divisors (4576318297374).

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

3917915139042 is a wasteful number, since it uses less digits than its factorization.

3917915139042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138905182 (or 138905179 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The spelling of 3917915139042 in words is "three trillion, nine hundred seventeen billion, nine hundred fifteen million, one hundred thirty-nine thousand, forty-two".