3786755121 has 96 divisors (see below), whose sum is σ = 6214440960. Its totient is φ = 2212531200.

The previous prime is 3786755107. The next prime is 3786755129. The reversal of 3786755121 is 1215576873.

It is a happy number.

3786755121 is a `hidden beast` number, since 3 + 78 + 6 + 7 + 551 + 21 = 666.

It is not a de Polignac number, because 3786755121 - 2⁶ = 3786755057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3786755129) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9734395 + ... + 9734783.

It is an arithmetic number, because the mean of its divisors is an integer number (64733760).

Almost surely, 2^3786755121 is an apocalyptic number.

3786755121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3786755121 is a deficient number, since it is larger than the sum of its proper divisors (2427685839).

3786755121 is a wasteful number, since it uses less digits than its factorization.

3786755121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 524 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 3786755121 is about 61536.6160996849. The cubic root of 3786755121 is about 1558.6756128914.

The spelling of 3786755121 in words is "three billion, seven hundred eighty-six million, seven hundred fifty-five thousand, one hundred twenty-one".