7854512545 has 8 divisors (see below), whose sum is σ = 10282271040. Its totient is φ = 5712372720.

The previous prime is 7854512473. The next prime is 7854512587. The reversal of 7854512545 is 5452154587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7854512545 - 2¹³ = 7854504353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7854512495 and 7854512504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71404605 + ... + 71404714.

It is an arithmetic number, because the mean of its divisors is an integer number (1285283880).

Almost surely, 2^7854512545 is an apocalyptic number.

It is an amenable number.

7854512545 is a deficient number, since it is larger than the sum of its proper divisors (2427758495).

7854512545 is a wasteful number, since it uses less digits than its factorization.

7854512545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142809335.

The product of its digits is 1120000, while the sum is 46.

The square root of 7854512545 is about 88625.6878393618. The cubic root of 7854512545 is about 1987.8017986119.

The spelling of 7854512545 in words is "seven billion, eight hundred fifty-four million, five hundred twelve thousand, five hundred forty-five".