12437407021 has 32 divisors (see below), whose sum is σ = 14333760000. Its totient is φ = 10703556864.

The previous prime is 12437407019. The next prime is 12437407057. The reversal of 12437407021 is 12070473421.

It is not a de Polignac number, because 12437407021 - 2¹ = 12437407019 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 (12437407001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2485480 + ... + 2490478.

It is an arithmetic number, because the mean of its divisors is an integer number (447930000).

Almost surely, 2^12437407021 is an apocalyptic number.

It is an amenable number.

12437407021 is a deficient number, since it is larger than the sum of its proper divisors (1896352979).

12437407021 is a wasteful number, since it uses less digits than its factorization.

12437407021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5245.

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 12437407021 in words is "twelve billion, four hundred thirty-seven million, four hundred seven thousand, twenty-one".