1401466778986 has 16 divisors (see below), whose sum is σ = 2103702321600. Its totient is φ = 700232758848.

The previous prime is 1401466778977. The next prime is 1401466779019. The reversal of 1401466778986 is 6898776641041.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59693746 + ... + 59717218.

It is an arithmetic number, because the mean of its divisors is an integer number (131481395100).

Almost surely, 2^{1401466778986} is an apocalyptic number.

1401466778986 is a deficient number, since it is larger than the sum of its proper divisors (702235542614).

1401466778986 is a wasteful number, since it uses less digits than its factorization.

1401466778986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43533.

The product of its (nonzero) digits is 97542144, while the sum is 67.

The spelling of 1401466778986 in words is "one trillion, four hundred one billion, four hundred sixty-six million, seven hundred seventy-eight thousand, nine hundred eighty-six".