1199150008779 has 4 divisors (see below), whose sum is σ = 1598866678376. Its totient is φ = 799433339184.

The previous prime is 1199150008741. The next prime is 1199150008781. The reversal of 1199150008779 is 9778000519911.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1199150008779 - 2³⁵ = 1164790270411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1199150008799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199858334794 + ... + 199858334799.

It is an arithmetic number, because the mean of its divisors is an integer number (399716669594).

Almost surely, 2^{1199150008779} is an apocalyptic number.

1199150008779 is a deficient number, since it is larger than the sum of its proper divisors (399716669597).

1199150008779 is an equidigital number, since it uses as much as digits as its factorization.

1199150008779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399716669596.

The product of its (nonzero) digits is 1428840, while the sum is 57.

The spelling of 1199150008779 in words is "one trillion, one hundred ninety-nine billion, one hundred fifty million, eight thousand, seven hundred seventy-nine".