2378654465 has 16 divisors (see below), whose sum is σ = 3115777536. Its totient is φ = 1728873600.

The previous prime is 2378654449. The next prime is 2378654471. The reversal of 2378654465 is 5644568732.

It is a happy number.

It is not a de Polignac number, because 2378654465 - 2⁴ = 2378654449 is a prime.

It is a Duffinian 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, 84080 + ... + 108750.

It is an arithmetic number, because the mean of its divisors is an integer number (194736096).

Almost surely, 2^2378654465 is an apocalyptic number.

It is an amenable number.

2378654465 is a deficient number, since it is larger than the sum of its proper divisors (737123071).

2378654465 is a wasteful number, since it uses less digits than its factorization.

2378654465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26440.

The product of its digits is 4838400, while the sum is 50.

The square root of 2378654465 is about 48771.4513316961. The cubic root of 2378654465 is about 1334.8847951010.

The spelling of 2378654465 in words is "two billion, three hundred seventy-eight million, six hundred fifty-four thousand, four hundred sixty-five".