102906644973 has 16 divisors (see below), whose sum is σ = 151164401472. Its totient is φ = 61750160000.

The previous prime is 102906644947. The next prime is 102906644987. The reversal of 102906644973 is 379446609201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102906644973 - 2⁵ = 102906644941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102906644993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15434208 + ... + 15440873.

It is an arithmetic number, because the mean of its divisors is an integer number (9447775092).

Almost surely, 2^102906644973 is an apocalyptic number.

It is an amenable number.

102906644973 is a deficient number, since it is larger than the sum of its proper divisors (48257756499).

102906644973 is a wasteful number, since it uses less digits than its factorization.

102906644973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30875196.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 102906644973 in words is "one hundred two billion, nine hundred six million, six hundred forty-four thousand, nine hundred seventy-three".