900170051012 has 12 divisors (see below), whose sum is σ = 1579685607360. Its totient is φ = 448831306056.

The previous prime is 900170051009. The next prime is 900170051047. The reversal of 900170051012 is 210150071009.

It is a super-2 number, since 2×900170051012² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313428248 + ... + 313431119.

It is an arithmetic number, because the mean of its divisors is an integer number (131640467280).

Almost surely, 2^900170051012 is an apocalyptic number.

It is an amenable number.

900170051012 is a deficient number, since it is larger than the sum of its proper divisors (679515556348).

900170051012 is a wasteful number, since it uses less digits than its factorization.

900170051012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626859730 (or 626859728 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 26.

The spelling of 900170051012 in words is "nine hundred billion, one hundred seventy million, fifty-one thousand, twelve".