2478693879405 has 48 divisors (see below), whose sum is σ = 4455836985600. Its totient is φ = 1321878616128.

The previous prime is 2478693879397. The next prime is 2478693879433. The reversal of 2478693879405 is 5049783968742.

2478693879405 is a `hidden beast` number, since 2 + 47 + 86 + 9 + 38 + 79 + 405 = 666.

It is not a de Polignac number, because 2478693879405 - 2³ = 2478693879397 is a prime.

It is a super-2 number, since 2×2478693879405² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19801644 + ... + 19926426.

It is an arithmetic number, because the mean of its divisors is an integer number (92829937200).

Almost surely, 2^{2478693879405} is an apocalyptic number.

It is an amenable number.

2478693879405 is a deficient number, since it is larger than the sum of its proper divisors (1977143106195).

2478693879405 is a wasteful number, since it uses less digits than its factorization.

2478693879405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141152 (or 141140 counting only the distinct ones).

The product of its (nonzero) digits is 731566080, while the sum is 72.

The spelling of 2478693879405 in words is "two trillion, four hundred seventy-eight billion, six hundred ninety-three million, eight hundred seventy-nine thousand, four hundred five".