2994637891605 has 16 divisors (see below), whose sum is σ = 4836200261184. Its totient is φ = 1582213664000.

The previous prime is 2994637891601. The next prime is 2994637891631. The reversal of 2994637891605 is 5061987364992.

It is not a de Polignac number, because 2994637891605 - 2² = 2994637891601 is a prime.

It is a super-2 number, since 2×2994637891605² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2994637891605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2994637891601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 932907396 + ... + 932910605.

It is an arithmetic number, because the mean of its divisors is an integer number (302262516324).

It is a 1-persistent number, because it is pandigital, but 2⋅2994637891605 = 5989275783210 is not.

Almost surely, 2^{2994637891605} is an apocalyptic number.

It is an amenable number.

2994637891605 is a deficient number, since it is larger than the sum of its proper divisors (1841562369579).

2994637891605 is a wasteful number, since it uses less digits than its factorization.

2994637891605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865818116.

The product of its (nonzero) digits is 176359680, while the sum is 69.

The spelling of 2994637891605 in words is "two trillion, nine hundred ninety-four billion, six hundred thirty-seven million, eight hundred ninety-one thousand, six hundred five".