85008507770 has 16 divisors (see below), whose sum is σ = 153078508800. Its totient is φ = 33989359824.

The previous prime is 85008507743. The next prime is 85008507781. The reversal of 85008507770 is 7770580058.

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, 1729970 + ... + 1778429.

It is an arithmetic number, because the mean of its divisors is an integer number (9567406800).

Almost surely, 2^85008507770 is an apocalyptic number.

85008507770 is a deficient number, since it is larger than the sum of its proper divisors (68070001030).

85008507770 is a wasteful number, since it uses less digits than its factorization.

85008507770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510829.

The product of its (nonzero) digits is 548800, while the sum is 47.

The spelling of 85008507770 in words is "eighty-five billion, eight million, five hundred seven thousand, seven hundred seventy".