102047663602 has 4 divisors (see below), whose sum is σ = 153071495406. Its totient is φ = 51023831800.

The previous prime is 102047663569. The next prime is 102047663639. The reversal of 102047663602 is 206366740201.

102047663602 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 319449²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 206366740201 = 19 ⋅10861407379.

It can be written as a sum of positive squares in only one way, i.e., 102047663601 + 1 = 319449^2 + 1^2 .

It is a super-2 number, since 2×102047663602² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25511915899 + ... + 25511915902.

Almost surely, 2^102047663602 is an apocalyptic number.

102047663602 is a deficient number, since it is larger than the sum of its proper divisors (51023831804).

102047663602 is an equidigital number, since it uses as much as digits as its factorization.

102047663602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51023831803.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 102047663602 in words is "one hundred two billion, forty-seven million, six hundred sixty-three thousand, six hundred two".