28337321425 has 24 divisors (see below), whose sum is σ = 41091951296. Its totient is φ = 18979410240.

The previous prime is 28337321423. The next prime is 28337321431. The reversal of 28337321425 is 52412373382.

It is not a de Polignac number, because 28337321425 - 2¹ = 28337321423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28337321423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1875354 + ... + 1890403.

Almost surely, 2^28337321425 is an apocalyptic number.

28337321425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28337321425 is a deficient number, since it is larger than the sum of its proper divisors (12754629871).

28337321425 is a wasteful number, since it uses less digits than its factorization.

28337321425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765817 (or 3765812 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The spelling of 28337321425 in words is "twenty-eight billion, three hundred thirty-seven million, three hundred twenty-one thousand, four hundred twenty-five".