87777775555553 has 8 divisors (see below), whose sum is σ = 90275053796928. Its totient is φ = 85301221615344.

The previous prime is 87777775555537. The next prime is 87777775555567. The reversal of 87777775555553 is 35555557777778.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87777775555553 - 2⁴ = 87777775555537 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (87777775555153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5181066701 + ... + 5181083642.

It is an arithmetic number, because the mean of its divisors is an integer number (11284381724616).

Almost surely, 2^{87777775555553} is an apocalyptic number.

It is an amenable number.

87777775555553 is a deficient number, since it is larger than the sum of its proper divisors (2497278241375).

87777775555553 is a wasteful number, since it uses less digits than its factorization.

87777775555553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10362150583.

The product of its digits is 44118375000, while the sum is 83.

The spelling of 87777775555553 in words is "eighty-seven trillion, seven hundred seventy-seven billion, seven hundred seventy-five million, five hundred fifty-five thousand, five hundred fifty-three".