11949622594921 has 32 divisors (see below), whose sum is σ = 13671782277120. Its totient is φ = 10344768033600.

The previous prime is 11949622594831. The next prime is 11949622594937. The reversal of 11949622594921 is 12949522694911.

11949622594921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11949622594921 - 2¹³ = 11949622586729 is a prime.

It is a super-2 number, since 2×11949622594921² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11949622594951) 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, 5934456 + ... + 7688758.

It is an arithmetic number, because the mean of its divisors is an integer number (427243196160).

Almost surely, 2^{11949622594921} is an apocalyptic number.

11949622594921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11949622594921 is a deficient number, since it is larger than the sum of its proper divisors (1722159682199).

11949622594921 is a wasteful number, since it uses less digits than its factorization.

11949622594921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754637.

The product of its digits is 25194240, while the sum is 64.

The spelling of 11949622594921 in words is "eleven trillion, nine hundred forty-nine billion, six hundred twenty-two million, five hundred ninety-four thousand, nine hundred twenty-one".