1000011951819 has 32 divisors (see below), whose sum is σ = 1487768240640. Its totient is φ = 663855738336.

The previous prime is 1000011951793. The next prime is 1000011951847. The reversal of 1000011951819 is 9181591100001.

1000011951819 is a `hidden beast` number, since 10 + 0 + 0 + 0 + 119 + 518 + 19 = 666.

It is not a de Polignac number, because 1000011951819 - 2⁷ = 1000011951691 is a prime.

It is a super-2 number, since 2×1000011951819² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1000011951889) 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, 17276244 + ... + 17334030.

It is an arithmetic number, because the mean of its divisors is an integer number (46492757520).

Almost surely, 2^{1000011951819} is an apocalyptic number.

1000011951819 is a deficient number, since it is larger than the sum of its proper divisors (487756288821).

1000011951819 is a wasteful number, since it uses less digits than its factorization.

1000011951819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60496 (or 60490 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 36.

The spelling of 1000011951819 in words is "one trillion, eleven million, nine hundred fifty-one thousand, eight hundred nineteen".