16773740425 has 24 divisors (see below), whose sum is σ = 22471094744. Its totient is φ = 12347112960.

The previous prime is 16773740407. The next prime is 16773740483. The reversal of 16773740425 is 52404737761.

It can be written as a sum of positive squares in 12 ways, for example, as 14033008521 + 2740731904 = 118461^2 + 52352^2 .

It is not a de Polignac number, because 16773740425 - 2⁵ = 16773740393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19279 + ... + 184171.

Almost surely, 2^16773740425 is an apocalyptic number.

It is an amenable number.

16773740425 is a deficient number, since it is larger than the sum of its proper divisors (5697354319).

16773740425 is a wasteful number, since it uses less digits than its factorization.

16773740425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165229 (or 165224 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 16773740425 in words is "sixteen billion, seven hundred seventy-three million, seven hundred forty thousand, four hundred twenty-five".