2690937643446 has 24 divisors (see below), whose sum is σ = 6278854501920. Its totient is φ = 827980813296.

The previous prime is 2690937643397. The next prime is 2690937643463. The reversal of 2690937643446 is 6443467390962.

2690937643446 is a `hidden beast` number, since 2 + 6 + 9 + 0 + 93 + 76 + 434 + 46 = 666.

It is a super-2 number, since 2×2690937643446² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 5749866526 + ... + 5749866993.

It is an arithmetic number, because the mean of its divisors is an integer number (261618937580).

Almost surely, 2^{2690937643446} is an apocalyptic number.

2690937643446 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2690937643446 is an abundant number, since it is smaller than the sum of its proper divisors (3587916858474).

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

2690937643446 is a wasteful number, since it uses less digits than its factorization.

2690937643446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11499733540 (or 11499733537 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 63.

The spelling of 2690937643446 in words is "two trillion, six hundred ninety billion, nine hundred thirty-seven million, six hundred forty-three thousand, four hundred forty-six".