12537445651 has 8 divisors (see below), whose sum is σ = 13277062080. Its totient is φ = 11798064768.

The previous prime is 12537445513. The next prime is 12537445699. The reversal of 12537445651 is 15654473521.

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 12537445651 - 2¹⁵ = 12537412883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12537445598 and 12537445607.

It is not an unprimeable number, because it can be changed into a prime (12537449651) 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, 57270 + ... + 168388.

It is an arithmetic number, because the mean of its divisors is an integer number (1659632760).

Almost surely, 2^12537445651 is an apocalyptic number.

12537445651 is a deficient number, since it is larger than the sum of its proper divisors (739616429).

12537445651 is a wasteful number, since it uses less digits than its factorization.

12537445651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117773.

The product of its digits is 504000, while the sum is 43.

The spelling of 12537445651 in words is "twelve billion, five hundred thirty-seven million, four hundred forty-five thousand, six hundred fifty-one".