7743980990 has 8 divisors (see below), whose sum is σ = 13939165800. Its totient is φ = 3097592392.

The previous prime is 7743980989. The next prime is 7743980999. The reversal of 7743980990 is 990893477.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7743980999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387199040 + ... + 387199059.

It is an arithmetic number, because the mean of its divisors is an integer number (1742395725).

Almost surely, 2^7743980990 is an apocalyptic number.

7743980990 is a deficient number, since it is larger than the sum of its proper divisors (6195184810).

7743980990 is a wasteful number, since it uses less digits than its factorization.

7743980990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774398106.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 7743980990 is about 87999.8919885701. The cubic root of 7743980990 is about 1978.4333584083.

The spelling of 7743980990 in words is "seven billion, seven hundred forty-three million, nine hundred eighty thousand, nine hundred ninety".