1415366278791 has 16 divisors (see below), whose sum is σ = 1960411154688. Its totient is φ = 907597745600.

The previous prime is 1415366278789. The next prime is 1415366278801. The reversal of 1415366278791 is 1978726635141.

It is a cyclic number.

It is not a de Polignac number, because 1415366278791 - 2¹ = 1415366278789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1415366278751) 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, 81026781 + ... + 81044246.

It is an arithmetic number, because the mean of its divisors is an integer number (122525697168).

Almost surely, 2^{1415366278791} is an apocalyptic number.

1415366278791 is a deficient number, since it is larger than the sum of its proper divisors (545044875897).

1415366278791 is a wasteful number, since it uses less digits than its factorization.

1415366278791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162071142.

The product of its digits is 15240960, while the sum is 60.

The spelling of 1415366278791 in words is "one trillion, four hundred fifteen billion, three hundred sixty-six million, two hundred seventy-eight thousand, seven hundred ninety-one".