12554773537 has 8 divisors (see below), whose sum is σ = 13102173504. Its totient is φ = 12007501968.

The previous prime is 12554773531. The next prime is 12554773541. The reversal of 12554773537 is 73537745521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12554773537 - 2³ = 12554773529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12554773531) 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, 205098 + ... + 259180.

It is an arithmetic number, because the mean of its divisors is an integer number (1637771688).

Almost surely, 2^12554773537 is an apocalyptic number.

It is an amenable number.

12554773537 is a deficient number, since it is larger than the sum of its proper divisors (547399967).

12554773537 is a wasteful number, since it uses less digits than its factorization.

12554773537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64199.

The product of its digits is 3087000, while the sum is 49.

The spelling of 12554773537 in words is "twelve billion, five hundred fifty-four million, seven hundred seventy-three thousand, five hundred thirty-seven".