85804777021470 has 64 divisors (see below), whose sum is σ = 222635274442560. Its totient is φ = 21038992293888.

The previous prime is 85804777021463. The next prime is 85804777021471. The reversal of 85804777021470 is 7412077740858.

It is a happy number.

It is a super-2 number, since 2×85804777021470² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85804777021471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 427939165 + ... + 428139624.

It is an arithmetic number, because the mean of its divisors is an integer number (3478676163165).

Almost surely, 2^{85804777021470} is an apocalyptic number.

85804777021470 is an abundant number, since it is smaller than the sum of its proper divisors (136830497421090).

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

85804777021470 is a wasteful number, since it uses less digits than its factorization.

85804777021470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856079069.

The product of its (nonzero) digits is 24586240, while the sum is 60.

The spelling of 85804777021470 in words is "eighty-five trillion, eight hundred four billion, seven hundred seventy-seven million, twenty-one thousand, four hundred seventy".