2117001078 has 24 divisors (see below), whose sum is σ = 4644900000. Its totient is φ = 696734064.

The previous prime is 2117001059. The next prime is 2117001097. The reversal of 2117001078 is 8701007112.

It is an interprime number because it is at equal distance from previous prime (2117001059) and next prime (2117001097).

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, 742953 + ... + 745796.

It is an arithmetic number, because the mean of its divisors is an integer number (193537500).

Almost surely, 2^2117001078 is an apocalyptic number.

2117001078 is an abundant number, since it is smaller than the sum of its proper divisors (2527898922).

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

2117001078 is a wasteful number, since it uses less digits than its factorization.

2117001078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488836 (or 1488833 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

The square root of 2117001078 is about 46010.8799959314. The cubic root of 2117001078 is about 1284.0256312757.

The spelling of 2117001078 in words is "two billion, one hundred seventeen million, one thousand, seventy-eight".