4645621037 has 2 divisors, whose sum is σ = 4645621038. Its totient is φ = 4645621036.

The previous prime is 4645621003. The next prime is 4645621063. The reversal of 4645621037 is 7301265464.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4437424996 + 208196041 = 66614^2 + 14429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4645621037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4645621067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322810518 + 2322810519.

It is an arithmetic number, because the mean of its divisors is an integer number (2322810519).

Almost surely, 2^4645621037 is an apocalyptic number.

It is an amenable number.

4645621037 is a deficient number, since it is larger than the sum of its proper divisors (1).

4645621037 is an equidigital number, since it uses as much as digits as its factorization.

4645621037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 4645621037 is about 68158.7928076782. The cubic root of 4645621037 is about 1668.5834303163.

The spelling of 4645621037 in words is "four billion, six hundred forty-five million, six hundred twenty-one thousand, thirty-seven".