38994201899431 has 2 divisors, whose sum is σ = 38994201899432. Its totient is φ = 38994201899430.

The previous prime is 38994201899381. The next prime is 38994201899449. The reversal of 38994201899431 is 13499810249983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38994201899431 - 2⁹ = 38994201898919 is a prime.

It is a super-2 number, since 2×38994201899431² (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 (38994201899461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19497100949715 + 19497100949716.

It is an arithmetic number, because the mean of its divisors is an integer number (19497100949716).

Almost surely, 2^{38994201899431} is an apocalyptic number.

38994201899431 is a deficient number, since it is larger than the sum of its proper divisors (1).

38994201899431 is an equidigital number, since it uses as much as digits as its factorization.

38994201899431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120932352, while the sum is 70.

The spelling of 38994201899431 in words is "thirty-eight trillion, nine hundred ninety-four billion, two hundred one million, eight hundred ninety-nine thousand, four hundred thirty-one".