1401209179815 has 16 divisors (see below), whose sum is σ = 2242020169728. Its totient is φ = 747283068576.

The previous prime is 1401209179807. The next prime is 1401209179859. The reversal of 1401209179815 is 5189719021041.

It is not a de Polignac number, because 1401209179815 - 2³ = 1401209179807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1371319 + ... + 2164008.

It is an arithmetic number, because the mean of its divisors is an integer number (140126260608).

Almost surely, 2^{1401209179815} is an apocalyptic number.

1401209179815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1401209179815 is a deficient number, since it is larger than the sum of its proper divisors (840810989913).

1401209179815 is a wasteful number, since it uses less digits than its factorization.

1401209179815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561758.

The product of its (nonzero) digits is 181440, while the sum is 48.

The spelling of 1401209179815 in words is "one trillion, four hundred one billion, two hundred nine million, one hundred seventy-nine thousand, eight hundred fifteen".