3740126661 has 48 divisors (see below), whose sum is σ = 5618156544. Its totient is φ = 2396185632.

The previous prime is 3740126659. The next prime is 3740126681. The reversal of 3740126661 is 1666210473.

It is a happy number.

It is not a de Polignac number, because 3740126661 - 2¹ = 3740126659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3740126681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10778290 + ... + 10778636.

It is an arithmetic number, because the mean of its divisors is an integer number (117044928).

Almost surely, 2^3740126661 is an apocalyptic number.

It is an amenable number.

3740126661 is a deficient number, since it is larger than the sum of its proper divisors (1878029883).

3740126661 is a wasteful number, since it uses less digits than its factorization.

3740126661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 3740126661 is about 61156.5749613237. The cubic root of 3740126661 is about 1552.2515541352.

The spelling of 3740126661 in words is "three billion, seven hundred forty million, one hundred twenty-six thousand, six hundred sixty-one".