46438188250561 has 2 divisors, whose sum is σ = 46438188250562. Its totient is φ = 46438188250560.

The previous prime is 46438188250549. The next prime is 46438188250627. The reversal of 46438188250561 is 16505288183464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25091533631025 + 21346654619536 = 5009145^2 + 4620244^2 .

It is a cyclic number.

It is not a de Polignac number, because 46438188250561 - 2²¹ = 46438186153409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 46438188250561.

It is not a weakly prime, because it can be changed into another prime (46438188200561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23219094125280 + 23219094125281.

It is an arithmetic number, because the mean of its divisors is an integer number (23219094125281).

Almost surely, 2^{46438188250561} is an apocalyptic number.

It is an amenable number.

46438188250561 is a deficient number, since it is larger than the sum of its proper divisors (1).

46438188250561 is an equidigital number, since it uses as much as digits as its factorization.

46438188250561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44236800, while the sum is 61.

The spelling of 46438188250561 in words is "forty-six trillion, four hundred thirty-eight billion, one hundred eighty-eight million, two hundred fifty thousand, five hundred sixty-one".