19549680952 has 8 divisors (see below), whose sum is σ = 36655651800. Its totient is φ = 9774840472.

The previous prime is 19549680929. The next prime is 19549681027. The reversal of 19549680952 is 25908694591.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1221855052 + ... + 1221855067.

It is an arithmetic number, because the mean of its divisors is an integer number (4581956475).

Almost surely, 2^19549680952 is an apocalyptic number.

It is an amenable number.

19549680952 is a deficient number, since it is larger than the sum of its proper divisors (17105970848).

19549680952 is a wasteful number, since it uses less digits than its factorization.

19549680952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443710125 (or 2443710121 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 58.

The spelling of 19549680952 in words is "nineteen billion, five hundred forty-nine million, six hundred eighty thousand, nine hundred fifty-two".