278872083555 has 16 divisors (see below), whose sum is σ = 480518052000. Its totient is φ = 137290871808.

The previous prime is 278872083527. The next prime is 278872083557. The reversal of 278872083555 is 555380278872.

It is not a de Polignac number, because 278872083555 - 2¹⁸ = 278871821411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (278872083557) 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, 715056430 + ... + 715056819.

It is an arithmetic number, because the mean of its divisors is an integer number (30032378250).

Almost surely, 2^278872083555 is an apocalyptic number.

278872083555 is a deficient number, since it is larger than the sum of its proper divisors (201645968445).

278872083555 is a wasteful number, since it uses less digits than its factorization.

278872083555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430113270.

The product of its (nonzero) digits is 37632000, while the sum is 60.

The spelling of 278872083555 in words is "two hundred seventy-eight billion, eight hundred seventy-two million, eighty-three thousand, five hundred fifty-five".