654709574851 has 4 divisors (see below), whose sum is σ = 655574449552. Its totient is φ = 653844700152.

The previous prime is 654709574843. The next prime is 654709574887. The reversal of 654709574851 is 158475907456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 654709574851 - 2³ = 654709574843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 654709574851.

It is not an unprimeable number, because it can be changed into a prime (654709574251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432436215 + ... + 432437728.

It is an arithmetic number, because the mean of its divisors is an integer number (163893612388).

Almost surely, 2^654709574851 is an apocalyptic number.

654709574851 is a deficient number, since it is larger than the sum of its proper divisors (864874701).

654709574851 is an equidigital number, since it uses as much as digits as its factorization.

654709574851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864874700.

The product of its (nonzero) digits is 42336000, while the sum is 61.

The spelling of 654709574851 in words is "six hundred fifty-four billion, seven hundred nine million, five hundred seventy-four thousand, eight hundred fifty-one".