1186871946970 has 16 divisors (see below), whose sum is σ = 2145698633160. Its totient is φ = 472675639104.

The previous prime is 1186871946959. The next prime is 1186871946973. The reversal of 1186871946970 is 796491786811.

It can be written as a sum of positive squares in 4 ways, for example, as 1186842472929 + 29474041 = 1089423^2 + 5429^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1186871946896 and 1186871946905.

It is not an unprimeable number, because it can be changed into a prime (1186871946973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259140057 + ... + 259144636.

Almost surely, 2^{1186871946970} is an apocalyptic number.

1186871946970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1186871946970 is a deficient number, since it is larger than the sum of its proper divisors (958826686190).

1186871946970 is a wasteful number, since it uses less digits than its factorization.

1186871946970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518284929.

The product of its (nonzero) digits is 36578304, while the sum is 67.

The spelling of 1186871946970 in words is "one trillion, one hundred eighty-six billion, eight hundred seventy-one million, nine hundred forty-six thousand, nine hundred seventy".