2478638776311 has 12 divisors (see below), whose sum is σ = 3581737322592. Its totient is φ = 1651742168256.

The previous prime is 2478638776301. The next prime is 2478638776331. The reversal of 2478638776311 is 1136778368742.

2478638776311 is a `hidden beast` number, since 2 + 478 + 6 + 3 + 87 + 76 + 3 + 11 = 666.

It is not a de Polignac number, because 2478638776311 - 2¹⁸ = 2478638514167 is a prime.

It is a super-2 number, since 2×2478638776311² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478638776301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56950591 + ... + 56994096.

It is an arithmetic number, because the mean of its divisors is an integer number (298478110216).

Almost surely, 2^{2478638776311} is an apocalyptic number.

2478638776311 is a deficient number, since it is larger than the sum of its proper divisors (1103098546281).

2478638776311 is a wasteful number, since it uses less digits than its factorization.

2478638776311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113947110 (or 113947107 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 63.

The spelling of 2478638776311 in words is "two trillion, four hundred seventy-eight billion, six hundred thirty-eight million, seven hundred seventy-six thousand, three hundred eleven".