870621124855156 has 6 divisors (see below), whose sum is σ = 1523586968496530. Its totient is φ = 435310562427576.

The previous prime is 870621124855133. The next prime is 870621124855169. The reversal of 870621124855156 is 651558421126078.

870621124855156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 592713887552656 + 277907237302500 = 24345716^2 + 16670550^2 .

It is a super-2 number, since 2×870621124855156² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 870621124855094 and 870621124855103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108827640606891 + ... + 108827640606898.

Almost surely, 2^{870621124855156} is an apocalyptic number.

It is an amenable number.

870621124855156 is a deficient number, since it is larger than the sum of its proper divisors (652965843641374).

870621124855156 is a wasteful number, since it uses less digits than its factorization.

870621124855156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217655281213793 (or 217655281213791 counting only the distinct ones).

The product of its (nonzero) digits is 32256000, while the sum is 61.

The spelling of 870621124855156 in words is "eight hundred seventy trillion, six hundred twenty-one billion, one hundred twenty-four million, eight hundred fifty-five thousand, one hundred fifty-six".