616750421887 has 2 divisors, whose sum is σ = 616750421888. Its totient is φ = 616750421886.

The previous prime is 616750421851. The next prime is 616750421893. The reversal of 616750421887 is 788124057616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616750421887 - 2¹⁵ = 616750389119 is a prime.

It is a super-3 number, since 3×616750421887³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616750421827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308375210943 + 308375210944.

It is an arithmetic number, because the mean of its divisors is an integer number (308375210944).

Almost surely, 2^616750421887 is an apocalyptic number.

616750421887 is a deficient number, since it is larger than the sum of its proper divisors (1).

616750421887 is an equidigital number, since it uses as much as digits as its factorization.

616750421887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 616750421887 in words is "six hundred sixteen billion, seven hundred fifty million, four hundred twenty-one thousand, eight hundred eighty-seven".