3781240609146 has 64 divisors (see below), whose sum is σ = 10153820952576. Its totient is φ = 906591153600.

The previous prime is 3781240609121. The next prime is 3781240609147. The reversal of 3781240609146 is 6419060421873.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3781240609147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314782590 + ... + 314794601.

It is an arithmetic number, because the mean of its divisors is an integer number (158653452384).

Almost surely, 2^{3781240609146} is an apocalyptic number.

3781240609146 is an abundant number, since it is smaller than the sum of its proper divisors (6372580343430).

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

3781240609146 is a wasteful number, since it uses less digits than its factorization.

3781240609146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629577227.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 3781240609146 in words is "three trillion, seven hundred eighty-one billion, two hundred forty million, six hundred nine thousand, one hundred forty-six".