917890677122 has 32 divisors (see below), whose sum is σ = 1460586885120. Its totient is φ = 431405591760.

The previous prime is 917890677083. The next prime is 917890677139. The reversal of 917890677122 is 221776098719.

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 15 ways as a sum of consecutive naturals, for example, 52076003 + ... + 52093625.

It is an arithmetic number, because the mean of its divisors is an integer number (45643340160).

Almost surely, 2^917890677122 is an apocalyptic number.

917890677122 is a deficient number, since it is larger than the sum of its proper divisors (542696207998).

917890677122 is a wasteful number, since it uses less digits than its factorization.

917890677122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28238.

The product of its (nonzero) digits is 5334336, while the sum is 59.

The spelling of 917890677122 in words is "nine hundred seventeen billion, eight hundred ninety million, six hundred seventy-seven thousand, one hundred twenty-two".