620483787439 has 2 divisors, whose sum is σ = 620483787440. Its totient is φ = 620483787438.

The previous prime is 620483787409. The next prime is 620483787449. The reversal of 620483787439 is 934787384026.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620483787439 - 2²¹ = 620481690287 is a prime.

It is a super-2 number, since 2×620483787439² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620483787409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310241893719 + 310241893720.

It is an arithmetic number, because the mean of its divisors is an integer number (310241893720).

Almost surely, 2^620483787439 is an apocalyptic number.

620483787439 is a deficient number, since it is larger than the sum of its proper divisors (1).

620483787439 is an equidigital number, since it uses as much as digits as its factorization.

620483787439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48771072, while the sum is 61.

The spelling of 620483787439 in words is "six hundred twenty billion, four hundred eighty-three million, seven hundred eighty-seven thousand, four hundred thirty-nine".