38994491769031 has 2 divisors, whose sum is σ = 38994491769032. Its totient is φ = 38994491769030.

The previous prime is 38994491769011. The next prime is 38994491769043. The reversal of 38994491769031 is 13096719449983.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38994491769031 is a prime.

It is a super-2 number, since 2×38994491769031² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38994491769011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19497245884515 + 19497245884516.

It is an arithmetic number, because the mean of its divisors is an integer number (19497245884516).

Almost surely, 2^{38994491769031} is an apocalyptic number.

38994491769031 is a deficient number, since it is larger than the sum of its proper divisors (1).

38994491769031 is an equidigital number, since it uses as much as digits as its factorization.

38994491769031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317447424, while the sum is 73.

The spelling of 38994491769031 in words is "thirty-eight trillion, nine hundred ninety-four billion, four hundred ninety-one million, seven hundred sixty-nine thousand, thirty-one".