102540211626 has 16 divisors (see below), whose sum is σ = 206577362304. Its totient is φ = 33930580704.

The previous prime is 102540211621. The next prime is 102540211663. The reversal of 102540211626 is 626112045201.

It is a junction number, because it is equal to n+sod(n) for n = 102540211593 and 102540211602.

It is not an unprimeable number, because it can be changed into a prime (102540211621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62371570 + ... + 62373213.

It is an arithmetic number, because the mean of its divisors is an integer number (12911085144).

Almost surely, 2^102540211626 is an apocalyptic number.

102540211626 is an abundant number, since it is smaller than the sum of its proper divisors (104037150678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102540211626 is a wasteful number, since it uses less digits than its factorization.

102540211626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124744925.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 102540211626 its reverse (626112045201), we get a palindrome (728652256827).

The spelling of 102540211626 in words is "one hundred two billion, five hundred forty million, two hundred eleven thousand, six hundred twenty-six".