102990589448 has 8 divisors (see below), whose sum is σ = 193107355230. Its totient is φ = 51495294720.

The previous prime is 102990589433. The next prime is 102990589483. The reversal of 102990589448 is 844985099201.

It can be written as a sum of positive squares in only one way, i.e., 102286111684 + 704477764 = 319822^2 + 26542^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6436911833 + ... + 6436911848.

Almost surely, 2^102990589448 is an apocalyptic number.

It is an amenable number.

102990589448 is a deficient number, since it is larger than the sum of its proper divisors (90116765782).

102990589448 is a wasteful number, since it uses less digits than its factorization.

102990589448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12873823687 (or 12873823683 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 59.

The spelling of 102990589448 in words is "one hundred two billion, nine hundred ninety million, five hundred eighty-nine thousand, four hundred forty-eight".