11901953019 has 16 divisors (see below), whose sum is σ = 17483341824. Its totient is φ = 7141884000.

The previous prime is 11901952987. The next prime is 11901953023. The reversal of 11901953019 is 91035910911.

It is not a de Polignac number, because 11901953019 - 2⁵ = 11901952987 is a prime.

It is a super-2 number, since 2×11901953019² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11901953519) 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, 1782139 + ... + 1788804.

It is an arithmetic number, because the mean of its divisors is an integer number (1092708864).

Almost surely, 2^11901953019 is an apocalyptic number.

11901953019 is a deficient number, since it is larger than the sum of its proper divisors (5581388805).

11901953019 is a wasteful number, since it uses less digits than its factorization.

11901953019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571058.

The product of its (nonzero) digits is 10935, while the sum is 39.

The spelling of 11901953019 in words is "eleven billion, nine hundred one million, nine hundred fifty-three thousand, nineteen".