28457478354 has 32 divisors (see below), whose sum is σ = 57575992320. Its totient is φ = 9376289552.

The previous prime is 28457478349. The next prime is 28457478359. The reversal of 28457478354 is 45387475482.

It is an interprime number because it is at equal distance from previous prime (28457478349) and next prime (28457478359).

It is a junction number, because it is equal to n+sod(n) for n = 28457478294 and 28457478303.

It is not an unprimeable number, because it can be changed into a prime (28457478359) 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, 100027 + ... + 258689.

It is an arithmetic number, because the mean of its divisors is an integer number (1799249760).

Almost surely, 2^28457478354 is an apocalyptic number.

28457478354 is an abundant number, since it is smaller than the sum of its proper divisors (29118513966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28457478354 is a wasteful number, since it uses less digits than its factorization.

28457478354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159014.

The product of its digits is 30105600, while the sum is 57.

The spelling of 28457478354 in words is "twenty-eight billion, four hundred fifty-seven million, four hundred seventy-eight thousand, three hundred fifty-four".