1868777834115 has 64 divisors (see below), whose sum is σ = 3051177292800. Its totient is φ = 976488307200.

The previous prime is 1868777834081. The next prime is 1868777834129. The reversal of 1868777834115 is 5114387778681.

It is not a de Polignac number, because 1868777834115 - 2⁷ = 1868777833987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 344853876 + ... + 344859294.

It is an arithmetic number, because the mean of its divisors is an integer number (47674645200).

Almost surely, 2^{1868777834115} is an apocalyptic number.

1868777834115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1868777834115 is a deficient number, since it is larger than the sum of its proper divisors (1182399458685).

1868777834115 is a wasteful number, since it uses less digits than its factorization.

1868777834115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7468.

The product of its digits is 63221760, while the sum is 66.

The spelling of 1868777834115 in words is "one trillion, eight hundred sixty-eight billion, seven hundred seventy-seven million, eight hundred thirty-four thousand, one hundred fifteen".