2278511667873 has 288 divisors, whose sum is σ = 4151639611392. Its totient is φ = 1177074892800.

The previous prime is 2278511667781. The next prime is 2278511667907. The reversal of 2278511667873 is 3787661158722.

It is a happy number.

It is not a de Polignac number, because 2278511667873 - 2¹⁴ = 2278511651489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 2278511667873.

It is not an unprimeable number, because it can be changed into a prime (2278511667073) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 23489810961 + ... + 23489811057.

Almost surely, 2^{2278511667873} is an apocalyptic number.

It is an amenable number.

2278511667873 is a deficient number, since it is larger than the sum of its proper divisors (1873127943519).

2278511667873 is a wasteful number, since it uses less digits than its factorization.

2278511667873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 309 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 63.

The spelling of 2278511667873 in words is "two trillion, two hundred seventy-eight billion, five hundred eleven million, six hundred sixty-seven thousand, eight hundred seventy-three".