38778196055951 has 32 divisors (see below), whose sum is σ = 42938093011968. Its totient is φ = 34726582679040.

The previous prime is 38778196055917. The next prime is 38778196055953. The reversal of 38778196055951 is 15955069187783.

It is a cyclic number.

It is not a de Polignac number, because 38778196055951 - 2²⁶ = 38778128947087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38778196055953) 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, 2758632515 + ... + 2758646571.

It is an arithmetic number, because the mean of its divisors is an integer number (1341815406624).

Almost surely, 2^{38778196055951} is an apocalyptic number.

38778196055951 is a deficient number, since it is larger than the sum of its proper divisors (4159896956017).

38778196055951 is a wasteful number, since it uses less digits than its factorization.

38778196055951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22751.

The product of its (nonzero) digits is 571536000, while the sum is 74.

The spelling of 38778196055951 in words is "thirty-eight trillion, seven hundred seventy-eight billion, one hundred ninety-six million, fifty-five thousand, nine hundred fifty-one".