6451054209 has 12 divisors (see below), whose sum is σ = 9866318436. Its totient is φ = 4047720192.

The previous prime is 6451054201. The next prime is 6451054241. The reversal of 6451054209 is 9024501546.

6451054209 is a `hidden beast` number, since 64 + 51 + 0 + 542 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6007025025 + 444029184 = 77505^2 + 21072^2 .

It is not a de Polignac number, because 6451054209 - 2³ = 6451054201 is a prime.

It is a super-2 number, since 2×6451054209² = 83232200814913231362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6451054201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21081724 + ... + 21082029.

It is an arithmetic number, because the mean of its divisors is an integer number (822193203).

Almost surely, 2^6451054209 is an apocalyptic number.

It is an amenable number.

6451054209 is a deficient number, since it is larger than the sum of its proper divisors (3415264227).

6451054209 is a wasteful number, since it uses less digits than its factorization.

6451054209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42163776 (or 42163773 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 6451054209 is about 80318.4549714448. The cubic root of 6451054209 is about 1861.5593937904.

The spelling of 6451054209 in words is "six billion, four hundred fifty-one million, fifty-four thousand, two hundred nine".