3687000353521 has 2 divisors, whose sum is σ = 3687000353522. Its totient is φ = 3687000353520.

The previous prime is 3687000353489. The next prime is 3687000353527. The reversal of 3687000353521 is 1253530007863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2551891231296 + 1135109122225 = 1597464^2 + 1065415^2 .

It is a cyclic number.

It is not a de Polignac number, because 3687000353521 - 2⁵ = 3687000353489 is a prime.

It is not a weakly prime, because it can be changed into another prime (3687000353527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1843500176760 + 1843500176761.

It is an arithmetic number, because the mean of its divisors is an integer number (1843500176761).

Almost surely, 2^{3687000353521} is an apocalyptic number.

It is an amenable number.

3687000353521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3687000353521 is an equidigital number, since it uses as much as digits as its factorization.

3687000353521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 3687000353521 in words is "three trillion, six hundred eighty-seven billion, three hundred fifty-three thousand, five hundred twenty-one".