1186761878890 has 32 divisors (see below), whose sum is σ = 2525522820480. Its totient is φ = 392859104064.

The previous prime is 1186761878873. The next prime is 1186761878893. The reversal of 1186761878890 is 988781676811.

It is a Harshad number since it is a multiple of its sum of digits (70).

It is not an unprimeable number, because it can be changed into a prime (1186761878893) 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, 292303852 + ... + 292307911.

It is an arithmetic number, because the mean of its divisors is an integer number (78922588140).

Almost surely, 2^{1186761878890} is an apocalyptic number.

1186761878890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1186761878890 is an abundant number, since it is smaller than the sum of its proper divisors (1338760941590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1186761878890 is a wasteful number, since it uses less digits than its factorization.

1186761878890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584611806.

The product of its (nonzero) digits is 65028096, while the sum is 70.

The spelling of 1186761878890 in words is "one trillion, one hundred eighty-six billion, seven hundred sixty-one million, eight hundred seventy-eight thousand, eight hundred ninety".