2661239192094 has 64 divisors (see below), whose sum is σ = 6760661107200. Its totient is φ = 760133735424.

The previous prime is 2661239192071. The next prime is 2661239192107. The reversal of 2661239192094 is 4902919321662.

2661239192094 is a `hidden beast` number, since 2 + 6 + 612 + 3 + 9 + 19 + 2 + 0 + 9 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2661239192094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288477 + ... + 2325015.

It is an arithmetic number, because the mean of its divisors is an integer number (105635329800).

Almost surely, 2^{2661239192094} is an apocalyptic number.

2661239192094 is an abundant number, since it is smaller than the sum of its proper divisors (4099421915106).

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

2661239192094 is a wasteful number, since it uses less digits than its factorization.

2661239192094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040014 (or 2040008 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The spelling of 2661239192094 in words is "two trillion, six hundred sixty-one billion, two hundred thirty-nine million, one hundred ninety-two thousand, ninety-four".