12261367465 has 8 divisors (see below), whose sum is σ = 14730895368. Its totient is φ = 9797591040.

The previous prime is 12261367429. The next prime is 12261367499. The reversal of 12261367465 is 56476316221.

It can be written as a sum of positive squares in 4 ways, for example, as 287099136 + 11974268329 = 16944^2 + 109427^2 .

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

It is not a de Polignac number, because 12261367465 - 2¹³ = 12261359273 is a prime.

It is a super-2 number, since 2×12261367465² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1433176 + ... + 1441705.

It is an arithmetic number, because the mean of its divisors is an integer number (1841361921).

Almost surely, 2^12261367465 is an apocalyptic number.

It is an amenable number.

12261367465 is a deficient number, since it is larger than the sum of its proper divisors (2469527903).

12261367465 is an equidigital number, since it uses as much as digits as its factorization.

12261367465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875739.

The product of its digits is 362880, while the sum is 43.

The spelling of 12261367465 in words is "twelve billion, two hundred sixty-one million, three hundred sixty-seven thousand, four hundred sixty-five".