84580776212 has 6 divisors (see below), whose sum is σ = 148016358378. Its totient is φ = 42290388104.

The previous prime is 84580776211. The next prime is 84580776281. The reversal of 84580776212 is 21267708548.

It can be written as a sum of positive squares in only one way, i.e., 43900306576 + 40680469636 = 209524^2 + 201694^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84580776211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10572597023 + ... + 10572597030.

It is an arithmetic number, because the mean of its divisors is an integer number (24669393063).

Almost surely, 2^84580776212 is an apocalyptic number.

It is an amenable number.

84580776212 is a deficient number, since it is larger than the sum of its proper divisors (63435582166).

84580776212 is a wasteful number, since it uses less digits than its factorization.

84580776212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21145194057 (or 21145194055 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 84580776212 in words is "eighty-four billion, five hundred eighty million, seven hundred seventy-six thousand, two hundred twelve".