11995272619 has 8 divisors (see below), whose sum is σ = 13265009712. Its totient is φ = 10755411840.

The previous prime is 11995272617. The next prime is 11995272637. The reversal of 11995272619 is 91627259911.

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 11995272619 - 2¹ = 11995272617 is a prime.

It is a super-2 number, since 2×11995272619² (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 (11995272617) 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, 7468234 + ... + 7469839.

It is an arithmetic number, because the mean of its divisors is an integer number (1658126214).

Almost surely, 2^11995272619 is an apocalyptic number.

11995272619 is a deficient number, since it is larger than the sum of its proper divisors (1269737093).

11995272619 is a wasteful number, since it uses less digits than its factorization.

11995272619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14938157.

The product of its digits is 612360, while the sum is 52.

The spelling of 11995272619 in words is "eleven billion, nine hundred ninety-five million, two hundred seventy-two thousand, six hundred nineteen".