2913623973666 has 48 divisors (see below), whose sum is σ = 7382471388864. Its totient is φ = 813104363232.

The previous prime is 2913623973647. The next prime is 2913623973677. The reversal of 2913623973666 is 6663793263192.

It is a happy number.

It is a super-2 number, since 2×2913623973666² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

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 23 ways as a sum of consecutive naturals, for example, 268878301 + ... + 268889136.

It is an arithmetic number, because the mean of its divisors is an integer number (153801487268).

Almost surely, 2^{2913623973666} is an apocalyptic number.

2913623973666 is an abundant number, since it is smaller than the sum of its proper divisors (4468847415198).

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

2913623973666 is a wasteful number, since it uses less digits than its factorization.

2913623973666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537767495 (or 537767492 counting only the distinct ones).

The product of its digits is 79361856, while the sum is 63.

The spelling of 2913623973666 in words is "two trillion, nine hundred thirteen billion, six hundred twenty-three million, nine hundred seventy-three thousand, six hundred sixty-six".