28458257451 has 16 divisors (see below), whose sum is σ = 40883652096. Its totient is φ = 17503982496.

The previous prime is 28458257411. The next prime is 28458257521. The reversal of 28458257451 is 15475285482.

It is a happy number.

It is not a de Polignac number, because 28458257451 - 2¹⁰ = 28458256427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28458257394 and 28458257403.

It is not an unprimeable number, because it can be changed into a prime (28458257411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104035 + ... + 260268.

It is an arithmetic number, because the mean of its divisors is an integer number (2555228256).

Almost surely, 2^28458257451 is an apocalyptic number.

28458257451 is a deficient number, since it is larger than the sum of its proper divisors (12425394645).

28458257451 is a wasteful number, since it uses less digits than its factorization.

28458257451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366322.

The product of its digits is 3584000, while the sum is 51.

The spelling of 28458257451 in words is "twenty-eight billion, four hundred fifty-eight million, two hundred fifty-seven thousand, four hundred fifty-one".