87122126105 has 32 divisors (see below), whose sum is σ = 126616573440. Its totient is φ = 56273978880.

The previous prime is 87122126101. The next prime is 87122126107. The reversal of 87122126105 is 50162122178.

It is not a de Polignac number, because 87122126105 - 2² = 87122126101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (87122126101) 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, 1005149 + ... + 1088378.

It is an arithmetic number, because the mean of its divisors is an integer number (3956767920).

Almost surely, 2^87122126105 is an apocalyptic number.

It is an amenable number.

87122126105 is a deficient number, since it is larger than the sum of its proper divisors (39494447335).

87122126105 is a wasteful number, since it uses less digits than its factorization.

87122126105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093609.

The product of its (nonzero) digits is 13440, while the sum is 35.

The spelling of 87122126105 in words is "eighty-seven billion, one hundred twenty-two million, one hundred twenty-six thousand, one hundred five".