84768874772 has 6 divisors (see below), whose sum is σ = 148345530858. Its totient is φ = 42384437384.

The previous prime is 84768874759. The next prime is 84768874777. The reversal of 84768874772 is 27747886748.

It can be written as a sum of positive squares in only one way, i.e., 79516104196 + 5252770576 = 281986^2 + 72476^2 .

It is a super-2 number, since 2×84768874772² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84768874777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10596109343 + ... + 10596109350.

It is an arithmetic number, because the mean of its divisors is an integer number (24724255143).

Almost surely, 2^84768874772 is an apocalyptic number.

It is an amenable number.

84768874772 is a deficient number, since it is larger than the sum of its proper divisors (63576656086).

84768874772 is a wasteful number, since it uses less digits than its factorization.

84768874772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21192218697 (or 21192218695 counting only the distinct ones).

The product of its digits is 236027904, while the sum is 68.

The spelling of 84768874772 in words is "eighty-four billion, seven hundred sixty-eight million, eight hundred seventy-four thousand, seven hundred seventy-two".