85470077770 has 32 divisors (see below), whose sum is σ = 191808176256. Its totient is φ = 26640024000.

The previous prime is 85470077753. The next prime is 85470077813. The reversal of 85470077770 is 7777007458.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55499281 + ... + 55500820.

It is an arithmetic number, because the mean of its divisors is an integer number (5994005508).

Almost surely, 2^85470077770 is an apocalyptic number.

85470077770 is an abundant number, since it is smaller than the sum of its proper divisors (106338098486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85470077770 is a wasteful number, since it uses less digits than its factorization.

85470077770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111000126.

The product of its (nonzero) digits is 2689120, while the sum is 52.

The spelling of 85470077770 in words is "eighty-five billion, four hundred seventy million, seventy-seven thousand, seven hundred seventy".