1394063969015 has 32 divisors (see below), whose sum is σ = 1726520334336. Its totient is φ = 1080093081600.

The previous prime is 1394063968991. The next prime is 1394063969041. The reversal of 1394063969015 is 5109693604931.

It is a happy number.

It is not a de Polignac number, because 1394063969015 - 2²⁴ = 1394047191799 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9774215 + ... + 9915815.

It is an arithmetic number, because the mean of its divisors is an integer number (53953760448).

Almost surely, 2^{1394063969015} is an apocalyptic number.

1394063969015 is a deficient number, since it is larger than the sum of its proper divisors (332456365321).

1394063969015 is a wasteful number, since it uses less digits than its factorization.

1394063969015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142139.

The product of its (nonzero) digits is 4723920, while the sum is 56.

The spelling of 1394063969015 in words is "one trillion, three hundred ninety-four billion, sixty-three million, nine hundred sixty-nine thousand, fifteen".