38994491763967 has 2 divisors, whose sum is σ = 38994491763968. Its totient is φ = 38994491763966.

The previous prime is 38994491763911. The next prime is 38994491763977. The reversal of 38994491763967 is 76936719449983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38994491763967 - 2¹⁹ = 38994491239679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38994491763977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19497245881983 + 19497245881984.

It is an arithmetic number, because the mean of its divisors is an integer number (19497245881984).

Almost surely, 2^{38994491763967} is an apocalyptic number.

38994491763967 is a deficient number, since it is larger than the sum of its proper divisors (1).

38994491763967 is an equidigital number, since it uses as much as digits as its factorization.

38994491763967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13332791808, while the sum is 85.

The spelling of 38994491763967 in words is "thirty-eight trillion, nine hundred ninety-four billion, four hundred ninety-one million, seven hundred sixty-three thousand, nine hundred sixty-seven".