84700777776 has 160 divisors (see below), whose sum is σ = 236144885760. Its totient is φ = 26095610112.

The previous prime is 84700777769. The next prime is 84700777783. The reversal of 84700777776 is 67777700748.

It is an interprime number because it is at equal distance from previous prime (84700777769) and next prime (84700777783).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4088821 + ... + 4109483.

It is an arithmetic number, because the mean of its divisors is an integer number (1475905536).

Almost surely, 2^84700777776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84700777776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118072442880).

84700777776 is an abundant number, since it is smaller than the sum of its proper divisors (151444107984).

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

84700777776 is a wasteful number, since it uses less digits than its factorization.

84700777776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20823 (or 20817 counting only the distinct ones).

The product of its (nonzero) digits is 22588608, while the sum is 60.

The spelling of 84700777776 in words is "eighty-four billion, seven hundred million, seven hundred seventy-seven thousand, seven hundred seventy-six".