1934921447425 has 12 divisors (see below), whose sum is σ = 2401743421440. Its totient is φ = 1546362431120.

The previous prime is 1934921447413. The next prime is 1934921447429. The reversal of 1934921447425 is 5247441294391.

It is a happy number.

It is not a de Polignac number, because 1934921447425 - 2¹⁷ = 1934921316353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1934921447429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39343105 + ... + 39392254.

It is an arithmetic number, because the mean of its divisors is an integer number (200145285120).

Almost surely, 2^{1934921447425} is an apocalyptic number.

It is an amenable number.

1934921447425 is a deficient number, since it is larger than the sum of its proper divisors (466821974015).

1934921447425 is an equidigital number, since it uses as much as digits as its factorization.

1934921447425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78736352 (or 78736347 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 55.

The spelling of 1934921447425 in words is "one trillion, nine hundred thirty-four billion, nine hundred twenty-one million, four hundred forty-seven thousand, four hundred twenty-five".