20062563881 has 2 divisors, whose sum is σ = 20062563882. Its totient is φ = 20062563880.

The previous prime is 20062563877. The next prime is 20062563931. The reversal of 20062563881 is 18836526002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17673309481 + 2389254400 = 132941^2 + 48880^2 .

It is a cyclic number.

It is not a de Polignac number, because 20062563881 - 2² = 20062563877 is a prime.

It is a super-2 number, since 2×20062563881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20062563841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10031281940 + 10031281941.

It is an arithmetic number, because the mean of its divisors is an integer number (10031281941).

Almost surely, 2^20062563881 is an apocalyptic number.

It is an amenable number.

20062563881 is a deficient number, since it is larger than the sum of its proper divisors (1).

20062563881 is an equidigital number, since it uses as much as digits as its factorization.

20062563881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 20062563881 in words is "twenty billion, sixty-two million, five hundred sixty-three thousand, eight hundred eighty-one".