2127415377561 has 16 divisors (see below), whose sum is σ = 3004340313600. Its totient is φ = 1334435367168.

The previous prime is 2127415377431. The next prime is 2127415377599. The reversal of 2127415377561 is 1657735147212.

It is not a de Polignac number, because 2127415377561 - 2²³ = 2127406988953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (2127415373561) 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, 6294601 + ... + 6623958.

It is an arithmetic number, because the mean of its divisors is an integer number (187771269600).

Almost surely, 2^{2127415377561} is an apocalyptic number.

It is an amenable number.

2127415377561 is a deficient number, since it is larger than the sum of its proper divisors (876924936039).

2127415377561 is a wasteful number, since it uses less digits than its factorization.

2127415377561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12921808.

The product of its digits is 2469600, while the sum is 51.

The spelling of 2127415377561 in words is "two trillion, one hundred twenty-seven billion, four hundred fifteen million, three hundred seventy-seven thousand, five hundred sixty-one".