3685817380 has 24 divisors (see below), whose sum is σ = 8845962048. Its totient is φ = 1263708768.

The previous prime is 3685817371. The next prime is 3685817393. The reversal of 3685817380 is 837185863.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13163494 + ... + 13163773.

It is an arithmetic number, because the mean of its divisors is an integer number (368581752).

Almost surely, 2^3685817380 is an apocalyptic number.

It is an amenable number.

3685817380 is an abundant number, since it is smaller than the sum of its proper divisors (5160144668).

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

3685817380 is a wasteful number, since it uses less digits than its factorization.

3685817380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26327283 (or 26327281 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 3685817380 is about 60710.9329528051. The cubic root of 3685817380 is about 1544.7016289306.

The spelling of 3685817380 in words is "three billion, six hundred eighty-five million, eight hundred seventeen thousand, three hundred eighty".