19875461425 has 12 divisors (see below), whose sum is σ = 24656101596. Its totient is φ = 15893576000.

The previous prime is 19875461383. The next prime is 19875461429. The reversal of 19875461425 is 52416457891.

It can be written as a sum of positive squares in 6 ways, for example, as 1982653729 + 17892807696 = 44527^2 + 133764^2 .

It is not a de Polignac number, because 19875461425 - 2¹³ = 19875453233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19875461429) 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, 109726 + ... + 227575.

It is an arithmetic number, because the mean of its divisors is an integer number (2054675133).

Almost surely, 2^19875461425 is an apocalyptic number.

It is an amenable number.

19875461425 is a deficient number, since it is larger than the sum of its proper divisors (4780640171).

19875461425 is a wasteful number, since it uses less digits than its factorization.

19875461425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339668 (or 339663 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 52.

The spelling of 19875461425 in words is "nineteen billion, eight hundred seventy-five million, four hundred sixty-one thousand, four hundred twenty-five".