102147620771 has 16 divisors (see below), whose sum is σ = 120586088448. Its totient is φ = 84674397600.

The previous prime is 102147620767. The next prime is 102147620789. The reversal of 102147620771 is 177026741201.

It is a cyclic number.

It is not a de Polignac number, because 102147620771 - 2² = 102147620767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102147620761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172121 + ... + 483653.

It is an arithmetic number, because the mean of its divisors is an integer number (7536630528).

Almost surely, 2^102147620771 is an apocalyptic number.

102147620771 is a deficient number, since it is larger than the sum of its proper divisors (18438467677).

102147620771 is a wasteful number, since it uses less digits than its factorization.

102147620771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313082.

The product of its (nonzero) digits is 32928, while the sum is 38.

The spelling of 102147620771 in words is "one hundred two billion, one hundred forty-seven million, six hundred twenty thousand, seven hundred seventy-one".