19680798629 has 4 divisors (see below), whose sum is σ = 20838492684. Its totient is φ = 18523104576.

The previous prime is 19680798611. The next prime is 19680798647. The reversal of 19680798629 is 92689708691.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (19680798611) and next prime (19680798647).

It can be written as a sum of positive squares in 2 ways, for example, as 17529230404 + 2151568225 = 132398^2 + 46385^2 .

It is a cyclic number.

It is not a de Polignac number, because 19680798629 - 2²⁴ = 19664021413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19680798679) 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, 578847002 + ... + 578847035.

It is an arithmetic number, because the mean of its divisors is an integer number (5209623171).

Almost surely, 2^19680798629 is an apocalyptic number.

It is an amenable number.

19680798629 is a deficient number, since it is larger than the sum of its proper divisors (1157694055).

19680798629 is a wasteful number, since it uses less digits than its factorization.

19680798629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157694054.

The product of its (nonzero) digits is 23514624, while the sum is 65.

The spelling of 19680798629 in words is "nineteen billion, six hundred eighty million, seven hundred ninety-eight thousand, six hundred twenty-nine".