3674721780366 has 128 divisors (see below), whose sum is σ = 9114316646400. Its totient is φ = 961785280512.

The previous prime is 3674721780341. The next prime is 3674721780391. The reversal of 3674721780366 is 6630871274763.

It is an interprime number because it is at equal distance from previous prime (3674721780341) and next prime (3674721780391).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 347749215 + ... + 347759781.

It is an arithmetic number, because the mean of its divisors is an integer number (71205598800).

Almost surely, 2^{3674721780366} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3674721780366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4557158323200).

3674721780366 is an abundant number, since it is smaller than the sum of its proper divisors (5439594866034).

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

3674721780366 is a wasteful number, since it uses less digits than its factorization.

3674721780366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15378.

The product of its (nonzero) digits is 42674688, while the sum is 60.

The spelling of 3674721780366 in words is "three trillion, six hundred seventy-four billion, seven hundred twenty-one million, seven hundred eighty thousand, three hundred sixty-six".