38778751005 has 32 divisors (see below), whose sum is σ = 65345149440. Its totient is φ = 19583403840.

The previous prime is 38778751001. The next prime is 38778751009. The reversal of 38778751005 is 50015787783.

It is an interprime number because it is at equal distance from previous prime (38778751001) and next prime (38778751009).

It is not a de Polignac number, because 38778751005 - 2² = 38778751001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38778751001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 536890 + ... + 604820.

It is an arithmetic number, because the mean of its divisors is an integer number (2042035920).

Almost surely, 2^38778751005 is an apocalyptic number.

It is an amenable number.

38778751005 is a deficient number, since it is larger than the sum of its proper divisors (26566398435).

38778751005 is a wasteful number, since it uses less digits than its factorization.

38778751005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69961.

The product of its (nonzero) digits is 1646400, while the sum is 51.

The spelling of 38778751005 in words is "thirty-eight billion, seven hundred seventy-eight million, seven hundred fifty-one thousand, five".