38419961851 has 2 divisors, whose sum is σ = 38419961852. Its totient is φ = 38419961850.

The previous prime is 38419961843. The next prime is 38419961861. The reversal of 38419961851 is 15816991483.

It is a happy number.

38419961851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38419961851 - 2³ = 38419961843 is a prime.

It is a super-3 number, since 3×38419961851³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38419961792 and 38419961801.

It is not a weakly prime, because it can be changed into another prime (38419961861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19209980925 + 19209980926.

It is an arithmetic number, because the mean of its divisors is an integer number (19209980926).

Almost surely, 2^38419961851 is an apocalyptic number.

38419961851 is a deficient number, since it is larger than the sum of its proper divisors (1).

38419961851 is an equidigital number, since it uses as much as digits as its factorization.

38419961851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 55.

The spelling of 38419961851 in words is "thirty-eight billion, four hundred nineteen million, nine hundred sixty-one thousand, eight hundred fifty-one".