3755980991 has 4 divisors (see below), whose sum is σ = 4292549712. Its totient is φ = 3219412272.

The previous prime is 3755980979. The next prime is 3755980997. The reversal of 3755980991 is 1990895573.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3755980991 - 2¹⁰ = 3755979967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3755980997) 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, 268284350 + ... + 268284363.

It is an arithmetic number, because the mean of its divisors is an integer number (1073137428).

Almost surely, 2^3755980991 is an apocalyptic number.

3755980991 is a deficient number, since it is larger than the sum of its proper divisors (536568721).

3755980991 is an equidigital number, since it uses as much as digits as its factorization.

3755980991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536568720.

The product of its (nonzero) digits is 3061800, while the sum is 56.

The square root of 3755980991 is about 61286.0587001644. The cubic root of 3755980991 is about 1554.4417844506.

The spelling of 3755980991 in words is "three billion, seven hundred fifty-five million, nine hundred eighty thousand, nine hundred ninety-one".