85451630570 has 16 divisors (see below), whose sum is σ = 154380515328. Its totient is φ = 34054523280.

The previous prime is 85451630519. The next prime is 85451630623. The reversal of 85451630570 is 7503615458.

It is a Curzon number.

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, 15763274 + ... + 15768693.

It is an arithmetic number, because the mean of its divisors is an integer number (9648782208).

Almost surely, 2^85451630570 is an apocalyptic number.

85451630570 is a deficient number, since it is larger than the sum of its proper divisors (68928884758).

85451630570 is a wasteful number, since it uses less digits than its factorization.

85451630570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31532245.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 85451630570 in words is "eighty-five billion, four hundred fifty-one million, six hundred thirty thousand, five hundred seventy".