102629910749 has 4 divisors (see below), whose sum is σ = 103687951164. Its totient is φ = 101571870336.

The previous prime is 102629910739. The next prime is 102629910791. The reversal of 102629910749 is 947019926201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 947019926201 = 619687 ⋅1528223.

It can be written as a sum of positive squares in 2 ways, for example, as 19587961849 + 83041948900 = 139957^2 + 288170^2 .

It is a cyclic number.

It is not a de Polignac number, because 102629910749 - 2²⁴ = 102613133533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102629910697 and 102629910706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102629910739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529020062 + ... + 529020255.

It is an arithmetic number, because the mean of its divisors is an integer number (25921987791).

Almost surely, 2^102629910749 is an apocalyptic number.

It is an amenable number.

102629910749 is a deficient number, since it is larger than the sum of its proper divisors (1058040415).

102629910749 is an equidigital number, since it uses as much as digits as its factorization.

102629910749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058040414.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 102629910749 in words is "one hundred two billion, six hundred twenty-nine million, nine hundred ten thousand, seven hundred forty-nine".