87775775622 has 24 divisors (see below), whose sum is σ = 190215596376. Its totient is φ = 29253245856.

The previous prime is 87775775599. The next prime is 87775775663. The reversal of 87775775622 is 22657757778.

87775775622 is a `hidden beast` number, since 8 + 7 + 7 + 7 + 577 + 56 + 2 + 2 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 87775775622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343623 + ... + 541874.

It is an arithmetic number, because the mean of its divisors is an integer number (7925649849).

Almost surely, 2^87775775622 is an apocalyptic number.

87775775622 is an abundant number, since it is smaller than the sum of its proper divisors (102439820754).

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

87775775622 is a wasteful number, since it uses less digits than its factorization.

87775775622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891012 (or 891009 counting only the distinct ones).

The product of its digits is 80673600, while the sum is 63.

It can be divided in two parts, 877757756 and 22, that added together give a palindrome (877757778).

The spelling of 87775775622 in words is "eighty-seven billion, seven hundred seventy-five million, seven hundred seventy-five thousand, six hundred twenty-two".