3758419921 has 2 divisors, whose sum is σ = 3758419922. Its totient is φ = 3758419920.

The previous prime is 3758419897. The next prime is 3758419957. The reversal of 3758419921 is 1299148573.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2085200896 + 1673219025 = 45664^2 + 40905^2 .

It is a cyclic number.

It is not a de Polignac number, because 3758419921 - 2⁹ = 3758419409 is a prime.

It is not a weakly prime, because it can be changed into another prime (3758419961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1879209960 + 1879209961.

It is an arithmetic number, because the mean of its divisors is an integer number (1879209961).

Almost surely, 2^3758419921 is an apocalyptic number.

It is an amenable number.

3758419921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3758419921 is an equidigital number, since it uses as much as digits as its factorization.

3758419921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 49.

The square root of 3758419921 is about 61305.9533895363. The cubic root of 3758419921 is about 1554.7781683329.

The spelling of 3758419921 in words is "three billion, seven hundred fifty-eight million, four hundred nineteen thousand, nine hundred twenty-one".