102563938477 has 16 divisors (see below), whose sum is σ = 137708226432. Its totient is φ = 73772262720.

The previous prime is 102563938459. The next prime is 102563938483. The reversal of 102563938477 is 774839365201.

It is not a de Polignac number, because 102563938477 - 2²⁷ = 102429720749 is a prime.

It is a super-2 number, since 2×102563938477² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102563938487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51229738 + ... + 51231739.

It is an arithmetic number, because the mean of its divisors is an integer number (8606764152).

It is a 1-persistent number, because it is pandigital, but 2⋅102563938477 = 205127876954 is not.

Almost surely, 2^102563938477 is an apocalyptic number.

It is an amenable number.

102563938477 is a deficient number, since it is larger than the sum of its proper divisors (35144287955).

102563938477 is a wasteful number, since it uses less digits than its factorization.

102563938477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102461508.

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 102563938477 in words is "one hundred two billion, five hundred sixty-three million, nine hundred thirty-eight thousand, four hundred seventy-seven".