12458687641 has 8 divisors (see below), whose sum is σ = 12665899400. Its totient is φ = 12251571840.

The previous prime is 12458687629. The next prime is 12458687701. The reversal of 12458687641 is 14678685421.

It can be written as a sum of positive squares in 4 ways, for example, as 3341302416 + 9117385225 = 57804^2 + 95485^2 .

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

It is not a de Polignac number, because 12458687641 - 2¹⁹ = 12458163353 is a prime.

It is a super-2 number, since 2×12458687641² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12458687041) 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, 266875 + ... + 310063.

It is an arithmetic number, because the mean of its divisors is an integer number (1583237425).

Almost surely, 2^12458687641 is an apocalyptic number.

It is an amenable number.

12458687641 is a deficient number, since it is larger than the sum of its proper divisors (207211759).

12458687641 is an equidigital number, since it uses as much as digits as its factorization.

12458687641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47979.

The product of its digits is 2580480, while the sum is 52.

The spelling of 12458687641 in words is "twelve billion, four hundred fifty-eight million, six hundred eighty-seven thousand, six hundred forty-one".