38717478278040 has 64 divisors (see below), whose sum is σ = 117886053288960. Its totient is φ = 10170561456000.

The previous prime is 38717478278033. The next prime is 38717478278159. The reversal of 38717478278040 is 4087287471783.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2407795336 + ... + 2407811415.

It is an arithmetic number, because the mean of its divisors is an integer number (1841969582640).

Almost surely, 2^{38717478278040} is an apocalyptic number.

38717478278040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38717478278040 is an abundant number, since it is smaller than the sum of its proper divisors (79168575010920).

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

38717478278040 is a wasteful number, since it uses less digits than its factorization.

38717478278040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4815606832 (or 4815606828 counting only the distinct ones).

The product of its (nonzero) digits is 118013952, while the sum is 66.

The spelling of 38717478278040 in words is "thirty-eight trillion, seven hundred seventeen billion, four hundred seventy-eight million, two hundred seventy-eight thousand, forty".