1994101770239 has 32 divisors (see below), whose sum is σ = 2082010909440. Its totient is φ = 1908494638848.

The previous prime is 1994101770217. The next prime is 1994101770253. The reversal of 1994101770239 is 9320771014991.

It is a cyclic number.

It is not a de Polignac number, because 1994101770239 - 2²⁴ = 1994084993023 is a prime.

It is a super-2 number, since 2×1994101770239² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994101770209) 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, 869646377 + ... + 869648669.

It is an arithmetic number, because the mean of its divisors is an integer number (65062840920).

Almost surely, 2^{1994101770239} is an apocalyptic number.

1994101770239 is a deficient number, since it is larger than the sum of its proper divisors (87909139201).

1994101770239 is a wasteful number, since it uses less digits than its factorization.

1994101770239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311.

The product of its (nonzero) digits is 857304, while the sum is 53.

The spelling of 1994101770239 in words is "one trillion, nine hundred ninety-four billion, one hundred one million, seven hundred seventy thousand, two hundred thirty-nine".