12261545413 has 8 divisors (see below), whose sum is σ = 13630701056. Its totient is φ = 10953241200.

The previous prime is 12261545371. The next prime is 12261545453. The reversal of 12261545413 is 31454516221.

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 12261545413 - 2¹³ = 12261537221 is a prime.

It is a super-2 number, since 2×12261545413² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12261545453) 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, 15212433 + ... + 15213238.

It is an arithmetic number, because the mean of its divisors is an integer number (1703837632).

Almost surely, 2^12261545413 is an apocalyptic number.

12261545413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12261545413 is a deficient number, since it is larger than the sum of its proper divisors (1369155643).

12261545413 is a wasteful number, since it uses less digits than its factorization.

12261545413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30425715.

The product of its digits is 28800, while the sum is 34.

The spelling of 12261545413 in words is "twelve billion, two hundred sixty-one million, five hundred forty-five thousand, four hundred thirteen".