1401115626815 has 4 divisors (see below), whose sum is σ = 1681338752184. Its totient is φ = 1120892501448.

The previous prime is 1401115626791. The next prime is 1401115626817. The reversal of 1401115626815 is 5186265111041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401115626815 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401115626817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140111562677 + ... + 140111562686.

It is an arithmetic number, because the mean of its divisors is an integer number (420334688046).

Almost surely, 2^{1401115626815} is an apocalyptic number.

1401115626815 is a deficient number, since it is larger than the sum of its proper divisors (280223125369).

1401115626815 is an equidigital number, since it uses as much as digits as its factorization.

1401115626815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280223125368.

The product of its (nonzero) digits is 57600, while the sum is 41.

The spelling of 1401115626815 in words is "one trillion, four hundred one billion, one hundred fifteen million, six hundred twenty-six thousand, eight hundred fifteen".