3621685051 has 2 divisors, whose sum is σ = 3621685052. Its totient is φ = 3621685050.

The previous prime is 3621685013. The next prime is 3621685141. The reversal of 3621685051 is 1505861263.

It is a weak prime.

It is an emirp because it is prime and its reverse (1505861263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3621685051 - 2²¹ = 3619587899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3621685051.

It is not a weakly prime, because it can be changed into another prime (3621685451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1810842525 + 1810842526.

It is an arithmetic number, because the mean of its divisors is an integer number (1810842526).

Almost surely, 2^3621685051 is an apocalyptic number.

3621685051 is a deficient number, since it is larger than the sum of its proper divisors (1).

3621685051 is an equidigital number, since it uses as much as digits as its factorization.

3621685051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 3621685051 is about 60180.4374444055. The cubic root of 3621685051 is about 1535.6900137782.

The spelling of 3621685051 in words is "three billion, six hundred twenty-one million, six hundred eighty-five thousand, fifty-one".