20003400858877 has 2 divisors, whose sum is σ = 20003400858878. Its totient is φ = 20003400858876.

The previous prime is 20003400858829. The next prime is 20003400858949. The reversal of 20003400858877 is 77885800430002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18439715634201 + 1563685224676 = 4294149^2 + 1250474^2 .

It is a cyclic number.

It is not a de Polignac number, because 20003400858877 - 2¹⁵ = 20003400826109 is a prime.

It is a super-2 number, since 2×20003400858877² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20003400858827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001700429438 + 10001700429439.

It is an arithmetic number, because the mean of its divisors is an integer number (10001700429439).

Almost surely, 2^{20003400858877} is an apocalyptic number.

It is an amenable number.

20003400858877 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003400858877 is an equidigital number, since it uses as much as digits as its factorization.

20003400858877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 20003400858877 in words is "twenty trillion, three billion, four hundred million, eight hundred fifty-eight thousand, eight hundred seventy-seven".