102021864002 has 32 divisors (see below), whose sum is σ = 158084110080. Its totient is φ = 49362647040.

The previous prime is 102021863969. The next prime is 102021864017. The reversal of 102021864002 is 200468120201.

It is a happy number.

It is an unprimeable number.

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, 1621874 + ... + 1683602.

It is an arithmetic number, because the mean of its divisors is an integer number (4940128440).

Almost surely, 2^102021864002 is an apocalyptic number.

102021864002 is a deficient number, since it is larger than the sum of its proper divisors (56062246078).

102021864002 is a wasteful number, since it uses less digits than its factorization.

102021864002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62018.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 102021864002 its reverse (200468120201), we get a palindrome (302489984203).

The spelling of 102021864002 in words is "one hundred two billion, twenty-one million, eight hundred sixty-four thousand, two".