12499952001969 has 16 divisors (see below), whose sum is σ = 16724198120000. Its totient is φ = 8304531725376.

The previous prime is 12499952001947. The next prime is 12499952001973. The reversal of 12499952001969 is 96910025999421.

It is not a de Polignac number, because 12499952001969 - 2²¹ = 12499949904817 is a prime.

It is a super-2 number, since 2×12499952001969² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12499952001919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1734634 + ... + 5292339.

It is an arithmetic number, because the mean of its divisors is an integer number (1045262382500).

Almost surely, 2^{12499952001969} is an apocalyptic number.

It is an amenable number.

12499952001969 is a deficient number, since it is larger than the sum of its proper divisors (4224246118031).

12499952001969 is a wasteful number, since it uses less digits than its factorization.

12499952001969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7029024.

The product of its (nonzero) digits is 28343520, while the sum is 66.

The spelling of 12499952001969 in words is "twelve trillion, four hundred ninety-nine billion, nine hundred fifty-two million, one thousand, nine hundred sixty-nine".